Fixing structure, four-way reversing valve and air conditioner

Abstract

The utility model provides a fixing structure, a four-way reversing valve and an air conditioner, the fixing structure comprises a fixing main body and a cushion layer part, and a placing cavity is arranged in the fixing main body; the cushion layer part is arranged in the placing cavity and divides the placing cavity into a first mounting cavity and a second mounting cavity, the first mounting cavity is used for mounting the electromagnetic coil, and the second mounting cavity is used for mounting the second pilot valve; and when the electromagnetic coil is mounted in the first mounting cavity and the second pilot valve is mounted in the second mounting cavity, the electromagnetic coil and the second pilot valve are fixed through a fixing structure. The fixing structure is simple in structure, convenient to install and capable of effectively solving the technical problem that in the prior art, a capillary tube is prone to cracking and leaking due to large vibration in the using process of a high-capacity four-way valve, and consequently an air conditioning system fails.

Description

Technical Field

[0001] The utility model relates to the technical field of reversing valves, in particular to a fixing structure, a four-way reversing valve and an air conditioner. Background Art

[0002] In the prior art, the four-way reversing valve is used in the air-conditioning system to control the flow direction of the refrigerant, thereby realizing the switching between the cooling and heating modes. Therefore, the four-way reversing valve is an indispensable component of the heat pump air conditioner. The conventional four-way reversing valve structure includes a main valve, a pilot valve, and an electromagnetic coil installed on the pilot valve. Its working principle is to change the flow direction of the refrigerant inside the pilot valve by energizing and de-energizing the electromagnetic coil, and then use the generated pressure difference to move the piston inside the main valve to realize the switching of the refrigerant flow direction in the refrigeration system circuit. At present, large-scale air conditioners such as commercial central air conditioners and commercial water heaters generally use large-capacity four-way reversing valves. Compared with ordinary four-way reversing valves, large-capacity four-way reversing valves add a second pilot valve between the main valve and the pilot valve to improve the switching reliability.

[0003] However, large-scale air-conditioning units will cause the large-capacity four-way reversing valve to vibrate violently during the processes of switching on and off, stable operation, and reversing of the four-way reversing valve. When the large-capacity four-way reversing valve vibrates violently, the electromagnetic coil installed on the pilot valve will also vibrate violently, thereby causing relative displacement between the pilot valve and the second pilot valve, increasing the force on the capillary tube between the pilot valve and the second pilot valve, which will easily lead to cracks at the root of the capillary tube's solder joint, causing failure of the air-conditioning system. Utility Model Content

[0004] The purpose of the utility model is to overcome the above technical deficiencies and provide a fixed structure, a four-way reversing valve and an air conditioner to solve the technical problem that the large-capacity four-way valve in the prior art vibrates greatly during use, causing the capillary tube to easily crack and leak, thereby causing the air conditioning system to fail.

[0005] In order to achieve the above technical purpose, according to one aspect of the utility model: a fixing structure is provided, the fixing structure includes: a fixing body and a cushion part, the fixing body has a placement cavity; the cushion part is arranged in the placement cavity, the cushion part divides the placement cavity into a first installation cavity and a second installation cavity, the first installation cavity is used to install the electromagnetic coil, and the second installation cavity is used to install the second pilot valve; when the electromagnetic coil is installed in the first installation cavity, and the second pilot valve is installed in the second installation cavity, the electromagnetic coil and the second pilot valve are fixed by the fixing structure.

[0006] Furthermore, the fixing structure further includes: a first fastener, which is sleeved on the outer wall of the fixing body to press the electromagnetic coil and the second pilot valve toward the cushion layer portion respectively.

[0007] Furthermore, a positioning groove adapted to the first fastener is provided on the outer wall of the fixing body, and the positioning groove is used to position the first fastener.

[0008] Furthermore, the fixed body includes a first fixing plate, a second fixing plate and a third fixing plate which are connected in sequence; the first fixing plate and the cushion part are arranged opposite to each other, one end of the first fixing plate is connected to one end of the second fixing plate, and the other end of the second fixing plate is connected to one end of the third fixing plate; wherein, along the distribution direction of the second fixing plate and the third fixing plate, the third fixing plate is curved, and the third fixing plate extends toward the cushion part away from one end of the second fixing plate; the first fixing plate, the second fixing plate and the cushion part form a first installation cavity; the second fixing plate, the cushion part and the third fixing plate form a second installation cavity.

[0009] Furthermore, the first fixed plate has a first adjustment end, which is arranged toward the first installation cavity; the cushion layer has a second adjustment end, which is arranged toward the first installation cavity; the first adjustment end and the second adjustment end are arranged opposite to each other; wherein, the fixed body has a first initial state and a first adjustment state, when the fixed body is in the first initial state, there is an initial gap between the first adjustment end and the second adjustment end, and when the fixed body is in the first adjustment state, the first adjustment end and the second adjustment end are far away from each other.

[0010] Furthermore, one end of the third fixing plate away from the second fixing plate is a third adjustment end; the fixing body has a second initial state and a second adjustment state, when the fixing body is in the second initial state, there is an initial gap between the third adjustment end and the cushion part, when the fixing body is in the second adjustment state, the third adjustment end moves in a direction away from the cushion part.

[0011] Furthermore, the first installation cavity and the second installation cavity both extend along the axial direction of the second pilot valve; a relief notch is provided at a position of the fixed body close to the second installation cavity, and the relief notch is used to avoid a connecting piece provided on the second pilot valve.

[0012] Furthermore, the fixing structure also includes a limiting portion, which is arranged on an end of the first installation cavity away from the fixing end of the electromagnetic coil, and abuts against the end surface of the electromagnetic coil away from the fixing end to limit the movement of the fixing structure toward the fixing end.

[0013] Furthermore, the thickness of the cushion layer is L1, and the gap between the electromagnetic coil and the second pilot valve is L2; ​​L1=L2-ΔL; wherein ΔL is the sealing gap between the cushion layer, the second pilot valve and the electromagnetic coil, wherein 0<ΔL≤0.5mm.

[0014] Furthermore, the fixing body and the cushion layer are both made of rubber material; and / or the thickness of the side wall of the fixing body is greater than or equal to 2 mm.

[0015] According to another aspect of the utility model, a four-way reversing valve is provided, which includes: an electromagnetic coil, a pilot valve, a second fastener, a main valve, a second pilot valve and a fixing structure, so that the electromagnetic coil is sleeved on the pilot valve; one end of the second fastener passes through the end of the electromagnetic coil and is connected to the pilot valve, and the electromagnetic coil is fixedly connected to the pilot valve through the second fastener; the main valve is located on one side of the electromagnetic coil, the second pilot valve is located between the main valve and the electromagnetic coil, and the second pilot valve is connected to the main valve through a connecting piece; the fixing structure is the above-mentioned fixing structure, and the fixing structure is respectively installed on the electromagnetic coil and the second pilot valve.

[0016] According to another aspect of the utility model, an air conditioner is provided, the air conditioner comprising: a four-way reversing valve, the four-way reversing valve being the above-mentioned four-way reversing valve.

[0017] Beneficial effects:

[0018] By applying the technical solution of the utility model, the fixing structure provided by the utility model can separate the placement cavity into a first installation cavity and a second installation cavity by arranging a cushion layer part in the placement cavity of the fixed body, and by installing the electromagnetic coil in the first installation cavity and the second pilot valve in the second installation cavity, the fixed body simultaneously wraps the electromagnetic coil and the second pilot valve, and then fixes the electromagnetic coil and the second pilot valve together through the fixing structure, so that when the four-way reversing valve vibrates, the relative movement between the pilot valve and the second pilot valve is limited by the fixing structure, avoiding the force of the capillary between the pilot valve and the second pilot valve, protecting the capillary between the pilot valve and the second pilot valve from damage, and improving the service life of the four-way reversing valve and the reliability of the long-term operation of the air conditioner. The fixing structure has a simple structure and is easy to install, and can effectively solve the technical problem that the large-capacity four-way valve in the prior art is prone to cracking and leaking due to large vibration during use, thereby causing the air conditioning system to fail. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It shows a structural schematic diagram of a large-capacity four-way reversing valve without an electromagnetic coil in the prior art;

[0020] Figure 2 A schematic diagram of the structure of a large-capacity four-way reversing valve in the prior art is shown;

[0021] Figure 3 A schematic diagram showing a first perspective of an embodiment of a four-way reversing valve of the utility model;

[0022] Figure 4 A schematic diagram showing a second viewing angle of an embodiment of the four-way reversing valve of the utility model;

[0023] Figure 5A schematic structural diagram showing a gap between the electromagnetic coil and the second pilot valve in an embodiment of the four-way reversing valve of the utility model is shown;

[0024] Figure 6 A schematic diagram showing a first viewing angle of an embodiment of the fixing structure of the utility model;

[0025] Figure 7 A second perspective schematic diagram of an embodiment of the fixing structure of the utility model is shown;

[0026] Figure 8 A third perspective schematic diagram of an embodiment of the fixing structure of the utility model is shown;

[0027] Fig. 9 A fourth viewing angle schematic diagram of an embodiment of the fixing structure of the utility model is shown.

[0028] The above drawings include the following reference numerals:

[0029] 1. Fixed structure; 10. Fixed body; 100. Placement cavity; 101. First installation cavity; 102. Second installation cavity; 103. Positioning groove; 104. First fixing plate; 1040. First adjustment end; 1041. First connecting section; 1042. Second connecting section; 105. Second fixing plate; 106. Third fixing plate; 1060. Third adjustment end; 11. Cushion part; 110. Second adjustment end; 111. First cushion section; 112. Second cushion section; 13. Avoidance gap; 14. Limiting part; 2. Electromagnetic coil; 20. Fixed end; 3. Second pilot valve; 4. Pilot valve; 5. Main valve; 6. Connector; 7. Second fastener; 8. Capillary. DETAILED DESCRIPTION

[0030] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0031] The large-capacity four-way reversing valve structure in the prior art, such as Figure 1 and Figure 2As shown, the large-capacity four-way reversing valve includes a main valve 5, a second pilot valve 3, a pilot valve 4 and an electromagnetic coil 2; the main valve 5 and the second pilot valve 3 are connected together through a fixing frame, and the second pilot valve 3 is connected to the main valve 5 and the main pipeline through four connecting pipes; at the same time, the pilot valve 4 and the second pilot valve 3 are also connected together through a fixing frame, and the pilot valve 4 is connected to the second pilot valve 3 and other connecting pipes through four capillaries. Bolt holes are provided on the end surface of the pilot valve 4, and after the electromagnetic coil 2 is sleeved on the pilot valve 4, the bolts (i.e., the second fasteners 7) pass through the end surface of the electromagnetic coil 2 and are installed in the bolt holes, so that the bolts (i.e., the second fasteners 7) are connected to the pilot valve 4, thereby fixing the electromagnetic coil 2 on the pilot valve 4 through the bolts.

[0032] When the large-capacity four-way reversing valve is working, the electromagnetic coil 2 is energized or de-energized, triggering the movement of the piston inside the second pilot valve 3, and then triggering the movement of the piston inside the main valve 5, and finally realizing the refrigerant reversal of the refrigeration system.

[0033] However, during the process of large-scale air-conditioning units turning on and off, stable operation, and reversing of the four-way reversing valve, the large-capacity four-way reversing valve will vibrate violently, such as Figure 2 As shown, the electromagnetic coil 2 is fixed to the pilot valve 4 by bolts, and the electromagnetic coil 2 is installed in a cantilever state. The electromagnetic coil 2 itself has a certain weight (over 100g), so when the large-capacity four-way reversing valve vibrates violently, the vibration of the electromagnetic coil 2 will be more violent, which will cause relative displacement between the pilot valve 4 and the second pilot valve 3, thereby increasing the force on the capillary 8 between the pilot valve 4 and the second pilot valve 3. Therefore, when the large-capacity four-way reversing valve is subjected to severe vibration for a long time, the root of the welding point of the capillary 8 will be easily cracked, thereby causing the entire air conditioner to fail.

[0034] In order to effectively solve the above problems, the utility model provides a fixing structure, a four-way reversing valve and an air conditioner, which are described in detail below.

[0035] See also Figures 3 to 9 According to an embodiment of the utility model, a fixing structure is provided, and the fixing structure 1 includes: a fixing body 10 and a cushion portion 11, wherein the fixing body 10 has a placement cavity 100; the cushion portion 11 is arranged in the placement cavity 100, and the cushion portion 11 divides the placement cavity 100 into a first installation cavity 101 and a second installation cavity 102, wherein the first installation cavity 101 is used for installing an electromagnetic coil 2, and the second installation cavity 102 is used for installing a second pilot valve 3; when the electromagnetic coil 2 is installed in the first installation cavity 101, and the second pilot valve 3 is installed in the second installation cavity 102, the electromagnetic coil 2 and the second pilot valve 3 are fixed by the fixing structure 1.

[0036] It can be seen that the fixing structure provided by the utility model can separate the placement cavity 100 into a first installation cavity 101 and a second installation cavity 102 by arranging a cushion layer portion 11 in the placement cavity 100 of the fixing body 10, and by installing the electromagnetic coil 2 in the first installation cavity 101 and the second pilot valve 3 in the second installation cavity 102, so that the fixing body 10 simultaneously wraps the electromagnetic coil 2 and the second pilot valve 3, and then fixes the electromagnetic coil 2 and the second pilot valve 3 together through the fixing structure 1, so that when the four-way reversing valve vibrates, the relative movement between the pilot valve 4 and the second pilot valve 3 is limited by the fixing structure 1, avoiding the force of the capillary 8 between the pilot valve 4 and the second pilot valve 3, protecting the capillary 8 between the pilot valve 4 and the second pilot valve 3 from damage, and improving the service life of the four-way reversing valve and the reliability of the long-term operation of the air conditioner. The fixing structure is simple in structure and easy to install, and can effectively solve the technical problem that the large-capacity four-way valve in the prior art is easy to crack and leak due to large vibration during use, thereby causing the air conditioning system to fail.

[0037] In the specific implementation process, the cushion layer 11 is made of a buffer material, which can absorb at least part of the vibration in addition to the separation function, thereby reducing noise. At the same time, it can also reduce the direct transfer of heat between the electromagnetic coil 2 and the second pilot valve 3.

[0038] In actual working process, the fixing body 10 and the cushion layer part 11 are integrally formed.

[0039] In actual working process, the cross section of the first installation cavity 101 and the cross section of the electromagnetic coil 2 are both rectangular; the cross section of the second installation cavity 102 and the cross section of the second pilot valve 3 are both circular.

[0040] In actual operation, the first installation cavity 101 will be wrapped around the outer wall of the electromagnetic coil 2, and the size of the first installation cavity 101 will be slightly larger than the appearance size of the electromagnetic coil 2; the second installation cavity 102 will be sleeved on the second pilot valve 3, and the inner diameter of the second installation cavity 102 will be slightly larger than the outer diameter of the second pilot valve 3.

[0041] In the specific implementation process, the fixed structure 1 also includes: a first fastener, which is sleeved on the outer wall of the fixed body 10 to squeeze the electromagnetic coil 2 and the second pilot valve 3 toward the cushion layer 11. With such a structural setting, by arranging the first fastener on the outer wall of the fixed structure 1, the electromagnetic coil 2 and the second pilot valve 3 are squeezed toward the cushion layer 11, thereby further enhancing the connection strength between the electromagnetic coil 2 and the second pilot valve 3 and the fixed structure 1, preventing the electromagnetic coil 2 from driving the pilot valve 4 and the second pilot valve 3 to move relative to each other under vibration or external force, thereby further improving the stability of the electromagnetic coil 2 and the second pilot valve 3.

[0042] In the actual working process, the first fastener is a wire tie, which is set on the outer wall of the fixed structure 1 and wrapped along the shape of the fixed structure 1. By tightening the wire tie, the electromagnetic coil 2 and the second pilot valve 3 are squeezed toward the cushion layer 11, thereby enhancing the connection strength between the electromagnetic coil 2 and the second pilot valve 3 and the fixed structure 1.

[0043] In the specific implementation process, Figure 3 , Figure 6 and Fig. 9 As shown, a positioning groove 103 adapted to the first fastener is provided on the outer wall of the fixed body 10, and the positioning groove 103 is used to position the first fastener. With such a structural setting, the positioning groove 103 adapted to the first fastener is provided on the outer wall of the fixed body 10, so that when the first fastener is sleeved on the outer wall of the fixed body 10, the first fastener can be clamped in the positioning groove 103 to position the first fastener and prevent the first fastener from falling off the fixed body 10.

[0044] In the specific implementation process, the positioning groove 103 is arranged along a ring. Specifically, a continuous positioning groove 103 is arranged on each surface of the fixed body 10 .

[0045] In a specific implementation process, there is at least one positioning groove 103 , and a plurality of positioning grooves 103 are arranged on the outer wall of the fixed body 10 at intervals along the axial direction of the second pilot valve 3 .

[0046] In actual working process, there is only one positioning groove 103 .

[0047] In the specific implementation process, Figure 6 As shown, the fixed body 10 includes a first fixing plate 104, a second fixing plate 105 and a third fixing plate 106 which are connected in sequence; the first fixing plate 104 and the cushion portion 11 are arranged opposite to each other, one end of the first fixing plate 104 is connected to one end of the second fixing plate 105, and the other end of the second fixing plate 105 is connected to one end of the third fixing plate 106; wherein, along the distribution direction of the second fixing plate 105 and the third fixing plate 106, the third fixing plate 106 is curved, and one end of the third fixing plate 106 away from the second fixing plate 105 extends toward the cushion portion 11; the first fixing plate 104, the second fixing plate 105 and the cushion portion 11 enclose a first installation cavity 101; the second fixing plate 105, the cushion portion 11 and the third fixing plate 106 enclose a second installation cavity 102.

[0048] In the specific implementation process, Figure 6 and Figure 7As shown, the first fixing plate 104 includes a first connecting segment 1041 and a second connecting segment 1042, one end of the first connecting segment 1041 is connected to one end of the second fixing plate 105, the other end of the first connecting segment 1041 is connected to one end of the second connecting segment 1042, and the other end of the second connecting segment 1042 is arranged toward the first installation cavity. The cushioning portion 11 includes a first cushioning segment 111 and a second cushioning segment 112, one end of the first cushioning segment 111 is connected to the inner wall of the placement cavity 100, the other end of the first cushioning segment 111 is connected to one end of the second cushioning segment 112, and the other end of the second cushioning segment 112 is arranged toward the first installation cavity. The second connecting segment 1042 is arranged opposite to the second cushioning segment 112.

[0049] In the specific implementation process, Figure 6 As shown, the first fixing plate 104 has a first adjustment end 1040, and the first adjustment end 1040 is arranged toward the first installation cavity 101; the cushion layer 11 has a second adjustment end 110, and the second adjustment end 110 is arranged toward the first installation cavity 101; the first adjustment end 1040 and the second adjustment end 110 are arranged opposite to each other; wherein, the fixing body 10 has a first initial state and a first adjustment state, when the fixing body 10 is in the first initial state, there is an initial gap between the first adjustment end 1040 and the second adjustment end 110, and when the fixing body 10 is in the first adjustment state, the first adjustment end 1040 and the second adjustment end 110 are far away from each other. With such a structural setting, by setting the first adjustment end 1040 and the second adjustment end 110, and when the fixed body 10 is in the first initial state, there is an initial gap between the first adjustment end 1040 and the second adjustment end 110, which can facilitate the installation of the electromagnetic coil 2 in the first installation cavity 101; at the same time, when the fixed body 10 is in the first adjustment state, the first adjustment end 1040 and the second adjustment end 110 are away from each other, increasing the gap between the first adjustment end 1040 and the second adjustment end 110, so that the fixed body 10 is conveniently mounted on the outside of the electromagnetic coil 2.

[0050] In a specific implementation process, one end of the second connecting segment 1042 away from the first connecting segment 1041 is the first adjustment end 1040 , and one end of the second cushion segment 112 away from the first cushion segment 111 is the second adjustment end 110 .

[0051] In actual operation, when the electromagnetic coil 2 needs to be installed in the first installation cavity 101, it is only necessary to enlarge the gap (i.e., the initial gap between the first adjustment end 1040 and the second adjustment end 110) (i.e., the first adjustment end 1040 and the second adjustment end 110 are moved away from each other), thereby making the gap larger, and then the electromagnetic coil 2 is clamped into the first installation cavity 101, so that the inner wall of the first installation cavity 101 fits the outer surface of the electromagnetic coil 2, so that the fixed body 10 is sleeved on the outside of the electromagnetic coil 2. At this time, the first adjustment end 1040 and the second adjustment end 110 are located on the bottom surface of the electromagnetic coil 2.

[0052] In the specific implementation process, Figure 6 As shown, the end of the third fixing plate 106 away from the second fixing plate 105 is the third adjustment end 1060; the fixing body 10 has a second initial state and a second adjustment state. When the fixing body 10 is in the second initial state, there is an initial gap between the third adjustment end 1060 and the cushion part 11. When the fixing body 10 is in the second adjustment state, the third adjustment end 1060 moves in a direction away from the cushion part 11. With such a structural setting, by providing a gap between the third adjustment end 1060 and the cushion part 11, it is convenient to install the second pilot valve 3 in the second installation cavity 102; at the same time, when the fixing body 10 is in the second adjustment state, the third adjustment end 1060 moves in a direction away from the cushion part 11, increasing the gap between the third adjustment end 1060 and the cushion part 11, so that the fixing body 10 is convenient to be sleeved on the outside of the second pilot valve 3.

[0053] In actual operation, when the second pilot valve 3 needs to be installed in the second installation cavity 102, it is only necessary to enlarge the gap (i.e., the initial gap between the third adjustment end 1060 and the cushion portion 11) (i.e., the third adjustment end 1060 moves in a direction away from the cushion portion 11) to make the gap larger, and then the second pilot valve 3 is clamped into the second installation cavity 102, so that the inner wall of the second installation cavity 102 fits with the outer surface of the second pilot valve 3, so that the fixed body 10 is sleeved on the outside of the second pilot valve 3.

[0054] In the specific implementation process, Figure 3 , Figure 6 and Figure 7As shown, the first installation cavity 101 and the second installation cavity 102 both extend in the axial direction of the second pilot valve 3; the fixed body 10 is provided with an avoidance notch 13 at a position close to the second installation cavity 102, and the avoidance notch 13 is used to avoid the connecting piece 6 provided on the second pilot valve 3. With such a structural setting, by providing the avoidance notch 13, it is convenient to avoid the connecting piece 6 provided on the second pilot valve 3 when the fixed body 10 is sleeved on the second pilot valve 3. At the same time, when the fixed body 10 is sleeved on the second pilot valve 3, the inner wall of the avoidance notch 13 abuts against the connecting piece 6, thereby limiting the movement of the fixed body 10 toward the connecting piece 6.

[0055] In actual working process, the connecting member 6 is a part of the fixing frame of the four-way reversing valve, at least a part of the connecting member 6 is arranged on the second pilot valve 3, and the second pilot valve 3 is connected to the fixing frame of the four-way reversing valve through the connecting member 6.

[0056] In this embodiment, if Figure 7 and Figure 8 As shown, the fixed structure 1 further includes a limiting portion 14, which is disposed on one end of the first mounting cavity 101 away from the fixed end 20 of the electromagnetic coil 2, and the limiting portion 14 abuts against the end surface of the electromagnetic coil 2 away from the fixed end 20, so as to limit the movement of the fixed structure 1 toward the fixed end 20. With such a structural arrangement, when the fixed body 10 is sleeved on the electromagnetic coil 2, the limiting portion 14 abuts against the end surface of the electromagnetic coil 2 away from the fixed end 20, so as to limit the movement of the fixed structure 1 toward the fixed end 20.

[0057] In actual working process, the fixed end 20 of the electromagnetic coil 2 is the end through which the second fastener 7 passes through the electromagnetic coil.

[0058] In a specific implementation process, one end of the limiting portion 14 is connected to the fixed body 10 , and the other end of the limiting portion 14 is disposed toward the first installation cavity 101 .

[0059] In actual working process, when the fixing structure 1 is installed on the electromagnetic coil 2 and the second pilot valve 3, the fixing structure 1 can be restricted at the installation position by the avoidance notch 13 and the limit portion 14, thereby preventing the fixing structure 1 from falling off from the electromagnetic coil 2 and / or the second pilot valve 3 due to vibration, thereby improving the firmness.

[0060] In the specific implementation process, Figure 5 and Figure 7As shown, the thickness of the cushion layer 11 is L1, and the gap between the electromagnetic coil 2 and the second pilot valve 3 is L2; ​​L1 = L2-△L; wherein △L is the sealing gap between the cushion layer 11 and the second pilot valve 3 and the electromagnetic coil 2, and 0 < △L ≤ 0.5mm. With such a structural setting, the sealing gap is set to ensure that there is an appropriate gap between the cushion layer 11 and the electromagnetic coil 2 and the second pilot valve 3. This gap can not only facilitate installation and position adjustment, but also prevent dust, moisture and other pollutants from entering, protect the internal components from being affected by the external environment, and improve the sealing and reliability of the system.

[0061] In the specific implementation process, the fixing body 10 and the cushion layer 11 are both made of rubber material. With such a structural setting, the rubber material usually has elasticity and buffering properties, thereby facilitating the installation of the fixing structure 1 on the electromagnetic coil 2 and the second pilot valve 3, and playing a role in vibration absorption and buffering.

[0062] In actual working process, the fixing structure 1 is made of rubber material as a whole, and the fixing structure 1 is integrally formed.

[0063] Preferably, the rubber material is EPDM or nitrile rubber having certain high temperature resistance.

[0064] In the specific implementation process, the thickness of the side wall of the fixing body 10 is greater than or equal to 2 mm. With such a structural setting, when the first fastener is used to apply pressure to the fixing body 10 or the first fastener applies pressure to the fixing body 10 for a long time, the thicker side wall can prevent the fixing body 10 from being deformed or broken due to external force, ensuring that the first fastener can stably apply the necessary pressure and ensure firmness.

[0065] In a specific implementation process, the thickness of the first fixing plate 104 , the second fixing plate 105 , and the third fixing plate 106 are all greater than or equal to 2 mm.

[0066] The utility model also provides a four-way reversing valve, which includes: an electromagnetic coil 2, a pilot valve 4, a second fastener 7, a main valve 5 and a second pilot valve 3, so that the electromagnetic coil 2 is sleeved on the pilot valve 4; one end of the second fastener 7 passes through the end of the electromagnetic coil 2 and is connected to the pilot valve 4, and the electromagnetic coil 2 is fixedly connected to the pilot valve 4 through the second fastener 7; the main valve 5 is located on one side of the electromagnetic coil 2, the second pilot valve 3 is located between the main valve 5 and the electromagnetic coil 2, and the second pilot valve 3 is connected to the main valve 5 through a connecting piece 6; a fixed structure 1, the fixed structure 1 is the fixed structure 1 of the above embodiment, and the fixed structure 1 is respectively installed on the electromagnetic coil 2 and the second pilot valve 3.

[0067] In a specific implementation process, the second fastener 7 is a bolt, and a bolt hole matching the bolt is provided on the end surface of the pilot valve 4 .

[0068] The installation process of installing the fixing structure 1 on the four-way reversing valve is as follows:

[0069] First, the electromagnetic coil 2 is installed in the first installation cavity 101 , and the position is adjusted so that the electromagnetic coil 2 abuts against the limiting portion 14 .

[0070] Then install the electromagnetic coil 2 and the fixed structure 1 together on the four-way reversing valve, specifically: the electromagnetic coil 2 is inserted into the pilot valve 4, and then the second pilot valve 3 is clamped into the second installation cavity 102, and finally the avoidance gap 13 is abutted against the fixing frame of the four-way reversing valve (that is, the connecting piece 6 and the rest of the fixing frame). At this time, the cushion part 11 is placed between the electromagnetic coil 2 and the second pilot valve 3; then the electromagnetic coil 2 is fixed to the pilot valve 4 with bolts, and the fixed structure 1 is tightened along the annular direction with wire ties.

[0071] The utility model also provides an air conditioner, which comprises a four-way reversing valve, and the four-way reversing valve is the four-way reversing valve of the above embodiment.

[0072] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0073] Optionally, the specific examples in this embodiment may refer to the examples described in the above embodiments, and this embodiment will not be described in detail here.

[0074] The serial numbers of the above-mentioned embodiments of the present application are for description only and do not represent the advantages or disadvantages of the embodiments.

[0075] In the above embodiments of the present application, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments.

[0076] The above is only a preferred implementation of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A fixing structure, characterized in that: The fixing structure (1) comprises: A fixed body (10), wherein the fixed body (10) has a placement cavity (100); A cushion layer portion (11), the cushion layer portion (11) being arranged in the placement cavity (100), the cushion layer portion (11) being used to separate the placement cavity (100) into a first installation cavity (101) and a second installation cavity (102), the first installation cavity (101) being used to install the electromagnetic coil (2), and the second installation cavity (102) being used to install the second pilot valve (3); When the electromagnetic coil (2) is installed in the first installation cavity (101), and the second pilot valve (3) is installed in the second installation cavity (102), the electromagnetic coil (2) and the second pilot valve (3) are fixed by the fixing structure (1).

2. The fixing structure according to claim 1, characterized in that: The fixing structure (1) further comprises: A first fastener is sleeved on the outer wall of the fixed body (10) to press the electromagnetic coil (2) and the second pilot valve (3) toward the cushion layer (11) respectively.

3. The fixing structure according to claim 2, characterized in that: A positioning groove (103) adapted to the first fastener is provided on the outer wall of the fixing body (10), and the positioning groove (103) is used to position the first fastener.

4. The fixing structure according to claim 1, characterized in that: The fixing body (10) comprises a first fixing plate (104), a second fixing plate (105) and a third fixing plate (106) which are connected in sequence; the first fixing plate (104) and the cushion layer part (11) are arranged opposite to each other, one end of the first fixing plate (104) is connected to one end of the second fixing plate (105), and the other end of the second fixing plate (105) is connected to one end of the third fixing plate (106); Wherein, along the distribution direction of the second fixing plate (105) and the third fixing plate (106), the third fixing plate (106) is curved, and one end of the third fixing plate (106) away from the second fixing plate (105) extends toward the cushioning portion (11); the first fixing plate (104), the second fixing plate (105) and the cushioning portion (11) enclose the first installation cavity (101); the second fixing plate (105), the cushioning portion (11) and the third fixing plate (106) enclose the second installation cavity (102).

5. The fixing structure according to claim 4, characterized in that: The first fixing plate (104) has a first adjustment end (1040), and the first adjustment end (1040) is arranged toward the first installation cavity (101); the cushion layer portion (11) has a second adjustment end (110), and the second adjustment end (110) is arranged toward the first installation cavity (101); the first adjustment end (1040) and the second adjustment end (110) are arranged opposite to each other; The fixed body (10) has a first initial state and a first adjustment state. When the fixed body (10) is in the first initial state, there is an initial gap between the first adjustment end (1040) and the second adjustment end (110). When the fixed body (10) is in the first adjustment state, the first adjustment end (1040) and the second adjustment end (110) are far away from each other.

6. The fixing structure according to claim 4, characterized in that: One end of the third fixing plate (106) away from the second fixing plate (105) is a third adjustment end (1060); the fixing body (10) has a second initial state and a second adjustment state, when the fixing body (10) is in the second initial state, there is an initial gap between the third adjustment end (1060) and the cushion part (11), when the fixing body (10) is in the second adjustment state, the third adjustment end (1060) moves in a direction away from the cushion part (11).

7. The fixing structure according to claim 1, characterized in that: The first installation cavity (101) and the second installation cavity (102) both extend along the axial direction of the second pilot valve (3); the fixed body (10) is provided with an avoidance notch (13) at a position close to the second installation cavity (102), and the avoidance notch (13) is used to avoid a connecting piece (6) provided on the second pilot valve (3).

8. The fixing structure according to claim 1, characterized in that: The fixed structure (1) further comprises a limiting portion (14), wherein the limiting portion (14) is arranged on an end of the first mounting cavity (101) away from the fixed end (20) of the electromagnetic coil (2), and the limiting portion (14) abuts against an end surface of the electromagnetic coil (2) away from the fixed end (20) to limit the movement of the fixed structure (1) in a direction toward the fixed end (20).

9. The fixing structure according to claim 1, characterized in that: The thickness of the cushion layer (11) is L1, and the gap between the electromagnetic coil (2) and the second pilot valve (3) is L2; ​​L1 = L2 - ΔL; Wherein, ΔL is the sealing gap between the cushion layer (11), the second pilot valve (3) and the electromagnetic coil (2), wherein 0<ΔL≤0.5mm.

10. The fixing structure according to any one of claims 1 to 9, characterized in that: The fixing body (10) and the cushion layer (11) are both made of rubber material; and / or, The thickness of the side wall of the fixing body (10) is greater than or equal to 2 mm.

11. A four-way reversing valve, characterized in that: The four-way reversing valve comprises: The electromagnetic coil (2) and the pilot valve (4), so that the electromagnetic coil (2) is sleeved on the pilot valve (4); a second fastener (7), one end of which passes through the end of the electromagnetic coil (2) and is connected to the pilot valve (4), and the electromagnetic coil (2) is fixedly connected to the pilot valve (4) through the second fastener (7); a main valve (5) and a second pilot valve (3), wherein the main valve (5) is located on one side of the electromagnetic coil (2), the second pilot valve (3) is located between the main valve (5) and the electromagnetic coil (2), and the second pilot valve (3) is connected to the main valve (5) via a connecting piece (6); A fixed structure (1), wherein the fixed structure (1) is the fixed structure (1) according to any one of claims 1 to 10, and the fixed structure (1) is respectively mounted on the electromagnetic coil (2) and the second pilot valve (3).

12. An air conditioner, characterized in that: The air conditioner comprises: a four-way reversing valve, and the four-way reversing valve is the four-way reversing valve according to claim 11.

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