Suction and exhaust valve group and compressor
By setting a limit plate on the side where the exhaust valve plate is away from the valve plate, the swing amplitude of the exhaust tongue spring is limited, and the problem of easy breakage of the exhaust tongue spring is solved, and the stability of the suction and exhaust valve group and compressor is improved.
Patent Information
- Application Number
- CN202421871476.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-02
- Publication Date
- 2025-08-15
- Estimated Expiration
- 2034-08-02
AI Technical Summary
In the prior art, the exhaust tongue spring is subjected to a large impact force, which leads to excessive stroke of the exhaust tongue spring, prone to breakage, resulting in poor stability of the valve group.
A limit plate is provided on the side of the exhaust valve plate away from the valve plate, and the swing amplitude of the exhaust tongue spring is limited through the limit plate, the stroke of the exhaust tongue spring is limited, and the stability of the suction and exhaust valve group is improved.
The limiting plate limits the swing amplitude of the exhaust tongue spring, which improves the service life of the exhaust tongue spring, enhances the working stability of the compressor and the stability of the suction and exhaust valve group.
Smart Images
Figure CN223227476U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of compressors, and in particular to an intake and exhaust valve group and a compressor. Background Art
[0002] A fully enclosed reciprocating piston refrigeration compressor realizes the suction and exhaust process through a suction and exhaust system, and the suction and exhaust valve group is the key component of the suction and exhaust system. The suction and exhaust valve group includes an exhaust valve plate, a valve plate and an suction valve plate. The valve plate is provided with suction holes and exhaust holes. The suction valve plate is provided with an suction tongue spring covering the suction holes, and the exhaust valve plate is provided with an exhaust tongue spring covering the exhaust holes. The suction holes and exhaust holes are opened and closed by the displacement of the suction tongue spring and the exhaust tongue spring, and the refrigerant is intermittently sucked into and discharged from the cylinder to achieve the purpose of refrigeration.
[0003] In the prior art, the exhaust tongue reed is subjected to a large impact force, which causes the exhaust tongue reed to have an excessively large stroke, and the exhaust tongue reed is prone to breakage, resulting in poor stability of the valve group. Utility Model Content
[0004] The purpose of the present application is to provide an intake and exhaust valve group and a compressor, which can limit the stroke of the exhaust valve tongue and improve the stability of the intake and exhaust valve group.
[0005] The embodiment of the present application is implemented as follows:
[0006] In one aspect of an embodiment of the present application, an intake and exhaust valve group is provided, comprising an exhaust valve disc, a valve plate, and an intake valve disc stacked in sequence, wherein the valve plate is provided with an intake hole and an exhaust hole, the intake tongue reed on the intake valve disc covers the intake hole, and the exhaust tongue reed on the exhaust valve disc covers the exhaust hole, a limiting plate is provided on the side of the exhaust valve disc away from the valve plate, the intake tongue reed is driven to swing away from the valve plate to open the intake hole, the exhaust tongue reed is driven to swing away from the valve plate to open the exhaust hole, and the limiting plate is used to limit the swing amplitude of the exhaust tongue reed.
[0007] Optionally, as an implementable method, the number of the air intake holes and the air exhaust holes is set to two, and the number of the air intake tongue reeds and the air exhaust tongue reeds is also set to two accordingly, the two air intake tongue reeds correspond one-to-one to the two air intake holes, and the two air exhaust tongue reeds correspond one-to-one to the two air exhaust holes.
[0008] Optionally, as an implementable method, the limit plate includes a plate surface and a limit lift portion arranged on the plate surface, the limit lift portion is arc-shapedly bent toward the plate surface away from the exhaust valve plate, and the limit lift portion limits the exhaust tongue spring.
[0009] Optionally, as an implementable manner, the number of the limit lift parts is set to two, the two limit lift parts correspond one-to-one to the two exhaust tongue reeds on the exhaust valve plate, and the two limit lift parts are connected by a connecting rib.
[0010] Optionally, as an implementable manner, the suction tongue reed includes a first connecting section and a first action section that are interconnected, the end of the first connecting section away from the first action section is connected to the suction valve plate, and the first action section is used to cover the suction hole, and the exhaust tongue reed includes a second connecting section and a second action section that are interconnected, the end of the second connecting section away from the second action section is connected to the exhaust valve plate, and the second action section is used to cover the exhaust hole, and the length of the first connecting section is greater than that of the second connecting section.
[0011] Optionally, as an implementable manner, the width of the first action segment is greater than the width of the first connecting segment, and the width of the second action segment is greater than the width of the second connecting segment.
[0012] Optionally, as an implementable manner, a avoidance groove corresponding to the exhaust tongue spring is provided on the side of the valve plate facing the exhaust valve plate, the depth of the avoidance groove is 0.1mm-1mm, and the exhaust hole is provided in the avoidance groove.
[0013] Optionally, as an implementable manner, a cylinder head is further included, and the cylinder head is arranged on a side of the limiting plate away from the exhaust valve plate.
[0014] Optionally, as an implementable manner, a cylinder head gasket is provided between the cylinder head and the limit plate, a limit plate gasket is provided between the limit plate and the exhaust valve plate, and a valve plate gasket is provided on the side of the intake valve plate away from the valve plate.
[0015] Another aspect of an embodiment of the present application provides a compressor, comprising a driver, a cylinder, and an intake and exhaust valve group as described above, wherein the driver drives the cylinder to perform piston motion, and the intake and exhaust valve group is connected to the cylinder.
[0016] The beneficial effects of the embodiments of the present application include:
[0017] The suction and exhaust valve group provided by the present application includes an exhaust valve disc, a valve plate, and an intake valve disc stacked in sequence. The valve plate is provided with an intake hole and an exhaust hole. The intake tongue reed on the intake valve disc covers the intake hole, and the exhaust tongue reed on the exhaust valve disc covers the exhaust hole. A limiting plate is provided on the side of the exhaust valve disc away from the valve plate. The intake tongue reed is driven to swing away from the valve plate to open the intake hole, and the exhaust tongue reed is driven to swing away from the valve plate to open the exhaust hole, and the limiting plate is used to limit the swing amplitude of the exhaust tongue reed, so as to limit the stroke of the exhaust valve tongue by limiting the limit plate, thereby improving the stability of the suction and exhaust valve group and improving the working stability of the compressor. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.
[0019] Figure 1 A schematic diagram of the structure of the intake and exhaust valve group provided in an embodiment of the present application;
[0020] Figure 2 A schematic diagram of the structure of the exhaust valve plate in the intake and exhaust valve group provided in an embodiment of the present application;
[0021] Figure 3 A schematic diagram of the structure of the intake valve plate in the intake and exhaust valve group provided in an embodiment of the present application;
[0022] Figure 4 A schematic diagram of the structure of the valve plate in the intake and exhaust valve group provided in an embodiment of the present application;
[0023] Figure 5 This is one of the structural schematic diagrams of the limit plate in the intake and exhaust valve group provided in the embodiment of the present application;
[0024] Figure 6 This is the second structural schematic diagram of the limit plate in the intake and exhaust valve group provided in the embodiment of the present application.
[0025] Icons: 100-intake and exhaust valve group; 110-exhaust valve plate; 111-exhaust tongue spring; 1111-second connecting section; 1112-second action section; 120-valve plate; 121-intake hole; 122-exhaust hole; 123-avoidance groove; 130-intake valve plate; 131-intake tongue spring; 1311-first connecting section; 1312-first action section; 140-limiting plate; 141-plate surface; 142-limiting lift part; 143-connecting rib; 150-cylinder head; 160-cylinder head gasket; 170-limiting plate gasket; 180-valve plate gasket. DETAILED DESCRIPTION
[0026] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of 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. Generally, the components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.
[0027] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in the present application without creative work are within the scope of protection of the present application.
[0028] It should be noted that similar reference numerals and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings. In addition, the terms "first," "second," "third," etc. are used only to distinguish the descriptions and are not to be understood as indicating or implying relative importance.
[0029] It should also be noted that, in the description of this application, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.
[0030] Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 This embodiment provides an intake and exhaust valve group 100, including an exhaust valve disc 110, a valve plate 120, and an intake valve disc 130 stacked in sequence. The valve plate 120 is provided with an intake hole 121 and an exhaust hole 122. The intake tongue reed 131 on the intake valve disc 130 covers the intake hole 121, and the exhaust tongue reed 111 on the exhaust valve disc 110 covers the exhaust hole 122. A limit plate 140 is provided on the side of the exhaust valve disc 110 away from the valve plate 120. The intake tongue reed 131 is driven to swing away from the valve plate 120 to open the intake hole 121, and the exhaust tongue reed 111 is driven to swing away from the valve plate 120 to open the exhaust hole 122, and the limit plate 140 is used to limit the swing amplitude of the exhaust tongue reed 111.
[0031] Specifically, when the intake and exhaust valve assembly 100 is in the intake stroke, the intake reed 131 is driven to swing away from the valve plate 120 to open the intake port 121. When the intake and exhaust valve assembly 100 is in the exhaust stroke, the intake reed 131 returns to the valve plate 120 to block the intake port. The exhaust reed 111 is driven to swing away from the valve plate 120 to open the exhaust port 122 for exhaust operation. When the exhaust reed 111 is driven to swing away from the valve plate 120 to a certain stroke, the exhaust reed 111 abuts against the limit plate 140 to prevent the impact force of the compressed air from causing the exhaust reed 111 to swing too much during the exhaust process, thereby preventing the exhaust reed 111 from breaking due to a large swing amplitude. The limit plate 140 limits the swing amplitude of the exhaust reed 111, thereby increasing the service life of the exhaust reed 111 and improving the operational stability of the compressor.
[0032] It should be noted that the exhaust valve plate 110 and the limit plate 140 are provided with through holes corresponding to the intake hole 121, and the outer diameter of the through hole is larger than the outer diameter of the intake hole 121, so as to ensure that the compressor can stably inhale during operation. The intake valve plate 130 is also provided with a through hole corresponding to the exhaust hole 122 to ensure that the compressor can stably exhaust during operation, so as to ensure the stable operation of the compressor.
[0033] The intake and exhaust valve group 100 provided in the present application includes an exhaust valve disc 110, a valve plate 120, and an intake valve disc 130 stacked in sequence. The valve plate 120 is provided with an intake hole 121 and an exhaust hole 122. The intake tongue reed 131 on the intake valve disc 130 covers the intake hole 121, and the exhaust tongue reed 111 on the exhaust valve disc 110 covers the exhaust hole 122. A limiting plate 140 is provided on the side of the exhaust valve disc 110 away from the valve plate 120. The intake tongue reed 131 is driven to swing away from the valve plate 120 to open the intake hole 121, and the exhaust tongue reed 111 is driven to swing away from the valve plate 120 to open the exhaust hole 122, and the limiting plate 140 is used to limit the swing amplitude of the exhaust tongue reed 111, so as to limit the stroke of the exhaust valve tongue through the limiting plate 140, thereby improving the stability of the intake and exhaust valve group 100 and improving the working stability of the compressor.
[0034] In a possible embodiment of the present application, Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 As shown, the number of the air intake holes 121 and the air exhaust holes 122 are both set to two, and the number of the air intake reeds 131 and the air exhaust reeds 111 are also correspondingly set to two. The two air intake reeds 131 correspond one-to-one to the two air intake holes 121, and the two air exhaust reeds 111 correspond one-to-one to the two air exhaust holes 122.
[0035] Specifically, two suction holes 121 and two exhaust holes 122 are provided, two suction reeds 131 corresponding to the suction hole 121 are provided, and two exhaust reeds 111 corresponding to the exhaust hole 122 are also provided to improve the suction and exhaust efficiency of the compressor.
[0036] When the intake and exhaust valve group 100 is in the intake stroke, the two intake tongue reeds 131 are simultaneously driven to swing away from the valve plate 120 to open the two intake holes 121. When the intake and exhaust valve group 100 is in the exhaust stroke, the two exhaust tongue reeds 111 are driven to swing away from the valve plate 120 to open the two exhaust holes 122. The two exhaust holes 122 can effectively improve the exhaust efficiency and reduce exhaust pulsation.
[0037] In a possible embodiment of the present application, Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 As shown, the limiting plate 140 includes a plate surface 141 and a limiting lift portion 142 provided on the plate surface 141 . The limiting lift portion 142 is arc-shapedly bent toward the plate surface 141 away from the exhaust valve plate 110 , and the limiting lift portion 142 limits the exhaust tongue spring 111 .
[0038] In a possible embodiment of the present application, Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 As shown, the number of the limit lift parts 142 is set to two, the two limit lift parts 142 correspond one to one to the two exhaust tongue reeds 111 on the exhaust valve plate 110, and the two limit lift parts 142 are connected by a connecting rib 143.
[0039] Specifically, when two exhaust tongue springs 111 are provided, two limit lift parts 142 corresponding to the exhaust tongue spring 111 are also provided, and the two limit lift parts 142 are connected by a connecting rib 143 to ensure that the two limit lift parts 142 can stably limit the exhaust tongue spring 111.
[0040] Please refer to Figure 5 and Figure 6 The connecting rib 143 includes a first connecting end connected to the plate surface 141 and a second connecting end connected to the limit lift portion 142. Figure 5 In the middle, the connecting rib 143 is bent into an arc shape relative to the plate surface 141 and connected to the limit lift portion 142; Figure 6 In the figure, the extending direction of the connecting rib 143 is parallel to the plate surface 141, and the second connecting end connected to the limiting lift portion 142 is bent and connected to the limiting lift portion.
[0041] In a possible embodiment of the present application, Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 As shown, the air suction tongue reed 131 includes a first connecting section 1311 and a first action section 1312 that are interconnected. The end of the first connecting section 1311 away from the first action section 1312 is connected to the air suction valve plate 130, and the first action section 1312 is used to cover the air suction hole 121. The air discharge tongue reed 111 includes a second connecting section 1111 and a second action section 1112 that are interconnected. The end of the second connecting section 1111 away from the second action section 1112 is connected to the air discharge valve plate 110, and the second action section 1112 is used to cover the air discharge hole 122. The length of the first connecting section 1311 is greater than that of the second connecting section 1111.
[0042] Specifically, during the operation of the intake and exhaust valve group 100, the impact force during exhaust is too large, so the length of the first connecting section 1311 is set to be greater than the length of the second connecting section 1111. During the intake process, the intake valve tongue can be easily opened, and the length of the second connecting section 1111 is shorter, so that the exhaust valve tongue is subjected to greater force, thereby reducing the swing amplitude of the exhaust valve tongue.
[0043] In a possible embodiment of the present application, Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 As shown, the width of the first action section 1312 is greater than the width of the first connecting section 1311 , and the width of the second action section 1112 is greater than the width of the second connecting section 1111 .
[0044] Specifically, the width of the first action section 1312 is set to be greater than the width of the first connection section 1311 , thereby reducing the force driving the suction tongue reed 131 to swing and reducing the resistance to opening the suction hole 121 .
[0045] The width of the second action section 1112 is set to be greater than the width of the second connection section 1111 , thereby reducing the force driving the exhaust tongue reed 111 to swing and reducing the resistance to opening the exhaust hole 122 .
[0046] In a possible embodiment of the present application, Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 As shown, a side of the valve plate 120 facing the exhaust valve plate 110 is provided with an avoidance groove 123 corresponding to the exhaust tongue spring 111 . The depth of the avoidance groove 123 is 0.1 mm-1 mm, and the exhaust hole 122 is provided in the avoidance groove 123 .
[0047] Specifically, when the exhaust tongue reed 111 is driven to bend, the end of the second connecting section 1111 of the exhaust tongue reed 111 connected to the exhaust valve plate 120 may interfere with the plate surface 141 of the valve plate 120, thereby causing the root of the second connecting section 1111 to contact the valve plate 120 and generate micro-friction, causing the exhaust tongue reed 111 to break. An avoidance groove 123 is provided on the valve plate 120 to avoid the root of the second connecting section 1111 from contacting the valve plate 120 and generating micro-friction, thereby preventing the exhaust tongue reed 111 from breaking during the swinging process.
[0048] In a possible embodiment of the present application, Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 As shown, a cylinder cover 150 is further included. The cylinder cover 150 is arranged on a side of the limiting plate 140 away from the exhaust valve plate 110 .
[0049] Specifically, the cylinder head 150 is provided with a first connecting hole, the exhaust valve plate 110 is provided with a second connecting hole, and the limiting plate 140 is provided with a third connecting hole; the intake valve plate 130 is provided with a fourth connecting hole, and fasteners are passed through the first connecting hole, the second connecting hole, the third connecting hole and the fourth connecting hole to connect the cylinder head 150, the exhaust valve plate 110, the limiting plate 140 and the intake valve plate 130.
[0050] In a possible embodiment of the present application, Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 As shown, a cylinder head gasket 160 is provided between the cylinder head 150 and the limiting plate 140 , a limiting plate gasket 170 is provided between the limiting plate 140 and the exhaust valve plate 110 , and a valve plate gasket 180 is provided on the side of the intake valve plate 130 facing away from the valve plate 120 .
[0051] Specifically, a cylinder head gasket 160 is provided between the cylinder head 150 and the limiting plate 140 to prevent the rigid contact between the cylinder head 150 and the limiting plate 140 from causing wear of the cylinder head 150 or the limiting plate 140 , thereby causing air leakage between the cylinder head 150 and the limiting plate 140 .
[0052] A limit plate gasket 170 is provided between the limit plate 140 and the exhaust valve disc 110 to prevent the limit plate 140 or the exhaust valve disc 110 from being worn due to rigid contact between the limit plate 140 and the exhaust valve disc 110, thereby causing air leakage between the limit plate 140 and the exhaust valve disc 110.
[0053] A valve plate gasket 180 is provided on the side of the intake valve plate 130 facing away from the valve plate 120 to ensure that the intake valve plate 130 and the cylinder body connection side will not break due to wear.
[0054] The present application also discloses a compressor comprising a driver, a cylinder, and the intake and exhaust valve assembly 100 described in the aforementioned embodiment. The driver drives the cylinder to perform piston motion, and the intake and exhaust valve assembly 100 is connected to the cylinder. This compressor has the same structure and benefits as the intake and exhaust valve assembly 100 described in the aforementioned embodiment. The structure and benefits of the intake and exhaust valve assembly 100 have been described in detail in the aforementioned embodiment and will not be repeated here.
[0055] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.
Claims
1. An intake and exhaust valve group, characterized in that: It includes an exhaust valve disc, a valve plate, and an intake valve disc stacked in sequence, wherein the valve plate is provided with an intake hole and an exhaust hole, the intake tongue reed on the intake valve disc covers the intake hole, and the exhaust tongue reed on the exhaust valve disc covers the exhaust hole, and a limit plate is provided on the side of the exhaust valve disc away from the valve plate, the intake tongue reed is driven to swing away from the valve plate to open the intake hole, and the exhaust tongue reed is driven to swing away from the valve plate to open the exhaust hole, and the limit plate is used to limit the swing amplitude of the exhaust tongue reed.
2. The intake and exhaust valve group according to claim 1, characterized in that: The number of the air intake holes and the air exhaust holes is set to two, and the number of the air intake tongue reeds and the air exhaust tongue reeds is also set to two accordingly. The two air intake tongue reeds correspond one-to-one to the two air intake holes, and the two air exhaust tongue reeds correspond one-to-one to the two air exhaust holes.
3. The intake and exhaust valve group according to claim 1, characterized in that: The limiting plate includes a plate surface and a limiting lift portion provided on the plate surface. The limiting lift portion is arc-shapedly bent in a direction away from the exhaust valve plate toward the plate surface, and the limiting lift portion limits the exhaust tongue reed.
4. The intake and exhaust valve group according to claim 3, characterized in that: The number of the position-limiting lift parts is set to two, the two position-limiting lift parts correspond one-to-one to the two exhaust tongue springs on the exhaust valve plate, and the two position-limiting lift parts are connected by a connecting rib.
5. The intake and exhaust valve assembly according to claim 1, characterized in that: The suction tongue reed includes a first connecting section and a first active section that are interconnected. An end of the first connecting section away from the first active section is connected to the suction valve plate, and the first active section is used to cover the suction hole. The exhaust tongue reed includes a second connecting section and a second active section that are interconnected. An end of the second connecting section away from the second active section is connected to the exhaust valve plate, and the second active section is used to cover the exhaust hole. The length of the first connecting section is greater than that of the second connecting section.
6. The intake and exhaust valve assembly according to claim 5, characterized in that: The width of the first action section is greater than the width of the first connecting section, and the width of the second action section is greater than the width of the second connecting section.
7. The intake and exhaust valve assembly according to claim 1, characterized in that: A side of the valve plate facing the exhaust valve sheet is provided with an avoidance groove corresponding to the exhaust tongue spring, the depth of the avoidance groove is 0.1mm-1mm, and the exhaust hole is provided in the avoidance groove.
8. The intake and exhaust valve assembly according to claim 1, characterized in that: It also includes a cylinder head, which is arranged on a side of the limiting plate away from the exhaust valve plate.
9. The intake and exhaust valve assembly according to claim 8, characterized in that: A cylinder head gasket is provided between the cylinder head and the limiting plate, a limiting plate gasket is provided between the limiting plate and the exhaust valve plate, and a valve plate gasket is provided on the side of the intake valve plate away from the valve plate.
10. A compressor, characterized in that: It comprises a driver, a cylinder and the intake and exhaust valve group according to any one of claims 1 to 9, wherein the driver drives the cylinder to perform piston motion, and the intake and exhaust valve group is connected to the cylinder.