Double-voltage 50Hz and 60Hz shared oilless compressor
By introducing external capacitors, sub-winding and specific lead connections into the oil-free compressor, the problem that existing oil-free compressors can only be used with a single voltage is solved, and 50Hz and 60Hz compatibility is achieved, improving the applicability and maintenance convenience of the product.
Patent Information
- Application Number
- CN202422028514.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-20
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2034-08-20
AI Technical Summary
Existing oil-free compressors can only be used for a single voltage and are difficult to use in different voltage environments, limiting their application range.
Design a dual-voltage oil-free compressor, using external capacitors, sub-winding and two main windings, and through a specific lead connection method, it achieves 50Hz and 60Hz compatibility, combined with a cooling fan, reduces the capacitor temperature, and ensures that the motor assembly works normally under different voltage environments.
The adaptability of the oil-free compressor in the voltage frequency range of 220-230V/50Hz and 110-115V/60Hz is achieved, and the product suitability is improved, which is easy to use in different countries or regions, and the temperature influence of the capacitor is reduced through simplified wiring and maintenance design.
Smart Images
Figure CN223089476U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of mechanical equipment, in particular to an oil-free compressor with dual voltages and shared 50Hz and 60Hz. Background Art
[0002] A compressor is a machine that raises low-pressure gas to high-pressure gas. The working principle of a reciprocating compressor is as follows: The motor drives the crankshaft to rotate, and the connecting rod drives the piston to reciprocate in the cylinder block, causing the volume of the cylinder to change periodically, and then the pressure in the cylinder changes periodically. Due to the change in the pressure in the cylinder, gas enters the cylinder through the intake valve. During the compression stroke, as the volume of the cylinder decreases, the compressed gas is output through the exhaust valve. Currently, traditional oil-free compressors on the market are all designed with a single voltage, that is, a compressor can only be applicable to one voltage specification, and at most, 50Hz and 60Hz are shared. Content of the Utility Model
[0003] The purpose of the utility model is to provide an oil-free compressor with dual voltages and shared 50Hz and 60Hz, so as to solve one or more technical problems existing in the prior art, and at least provide a beneficial option or create conditions.
[0004] To achieve the above purpose, the utility model adopts the following technical solutions.
[0005] An oil-free compressor with dual voltages and shared 50Hz and 60Hz includes a motor assembly, a cylinder assembly, and an external capacitor; the motor assembly includes a stator and a rotor, and a secondary winding, a first main winding, and a second main winding are provided on the stator; a first end of the capacitor is connected to a first end of the secondary winding, a second end of the capacitor is connected to a first end of the first main winding, and a second end of the first main winding is connected to a second end of the secondary winding; a first lead and a second lead are respectively led out from the first end and the second end of the first main winding, and a third lead and a fourth lead are respectively led out from both ends of the second main winding.
[0006] More preferably, a fifth lead and a sixth lead are respectively led out from the first end of the first main winding and the first end of the secondary winding, and the capacitor is detachably connected to the first end of the first main winding and the first end of the secondary winding through the fifth lead and the sixth lead.
[0007] More preferably, heat shrinkable tubes are respectively sleeved on the fifth lead and the sixth lead, and then the two motor capacitor wires are sleeved with PVC tubes, and the two motor capacitor wires are staggeredly connected to the two lead-out wires on the capacitor.
[0008] More preferably, the first lead wire, the second lead wire, the third lead wire, the fourth lead wire and the ground wire are wound together with a winding tube.
[0009] More preferably, low-voltage wiring marks and high-voltage wiring marks are provided on the body of the oil-free compressor.
[0010] More preferably, the capacitor is connected to the cylinder head part of the cylinder assembly and is suspended away from the cylinder head.
[0011] More preferably, a heat dissipation channel communicated with a heat dissipation fan is provided on the cylinder head, and the air outlet of the heat dissipation channel corresponds to the position where the capacitor is located.
[0012] The utility model has at least the following beneficial effects.
[0013] First, by providing an external capacitor, a secondary winding, two primary windings, and specific lead wires, during application, 1) short-circuit the first lead wire and the third lead wire, and short-circuit the second lead wire and the fourth lead wire. At this time, the first primary winding and the second primary winding are in a parallel state, and an external power supply of 110 - 115V, 50 / 60Hz can be connected between the third lead wire and the fourth lead wire to drive the motor assembly; 2) connect the third lead wire and the second lead wire. At this time, the first primary winding and the second primary winding are in a series state, and an external power supply of 220 - 230V, 50 / 60Hz can be connected between the fourth lead wire and the first lead wire to drive the motor assembly; it meets the use requirements of the voltage frequency range of 220 - 230V / 50Hz / 60Hz or 110 - 115V / 50Hz / 60Hz, the product has strong adaptability and is convenient to use in different countries or regions.
[0014] Second, a fifth lead wire and a sixth lead wire are respectively led out from the first end of the first primary winding and the first end of the secondary winding. The capacitor is detachably connected to the first end of the first primary winding and the first end of the secondary winding through the fifth lead wire and the sixth lead wire. This not only facilitates wiring but also is conducive to the maintenance and replacement of the capacitor.
[0015] Third, since the capacitor is connected to the cylinder head part of the cylinder assembly and is suspended away from the cylinder head; in this way, it is not only convenient for the wiring of the capacitor but also avoids the capacitor being affected by high temperature and affecting its performance. In particular, by providing a heat dissipation channel communicated with a heat dissipation fan on the cylinder head, the air outlet of the heat dissipation channel corresponds to the position where the capacitor is located. In this way, the working temperature around the capacitor can be better reduced, and further the parameter performance required for the common use of 50Hz and 60Hz can be better met. Description of the Drawings
[0016] Figure 1 The figure shows a structural schematic diagram of the oil-free compressor provided by the utility model.
[0017] Figure 2 The side view of the oil-free compressor provided by the present utility model is shown as follows.
[0018] Figure 3 The top view of the oil-free compressor provided by the present utility model is shown as follows.
[0019] Figure 4 The wiring schematic diagram of the oil-free compressor provided by the present utility model when operating at 220 - 230V is shown as follows.
[0020] Figure 5 The wiring schematic diagram of the oil-free compressor provided by the present utility model when operating at 110 - 115V is shown as follows.
[0021] Figure 6 The low-voltage wiring marking diagram is shown as follows.
[0022] Figure 7 The high-voltage wiring marking diagram is shown as follows.
[0023] Explanation of reference numerals.
[0024] 1: Motor assembly, 2: Cylinder assembly, 3: Capacitor, 4: First lead wire, 5: Second lead wire, 6: Third lead wire, 7: Fourth lead wire, 8: Fifth lead wire, 9: Sixth lead wire, 10: Ground wire, 11: Low-voltage wiring marking, 12: High-voltage wiring marking.
[0025] 201: Cylinder head, 202: Cooling fan. Detailed implementation manners
[0026] The following further describes the detailed implementation manners of the present utility model in combination with the attached drawings of the specification, making the technical solutions and their beneficial effects of the present utility model clearer and more definite. The embodiments described below by referring to the attached drawings are exemplary and are intended to explain the present utility model, but should not be construed as limiting the present utility model.
[0027] The additional aspects and advantages of the present utility model will become apparent in the following description part, or be understood through the practice of the present utility model.
[0028] Refer to Figures 1 - 5As shown in the figure, an oil-free compressor with dual voltages and compatible with 50Hz and 60Hz includes a motor assembly 1, cylinder assemblies 2 disposed on both sides of the motor assembly 1, and an external capacitor 3. The motor assembly 1 includes a stator and a rotor. A secondary winding A, a first main winding M1, and a second main winding M2 are provided on the stator. The first end of the capacitor 3 is connected to the first end of the secondary winding A, the second end of the capacitor 3 is connected to the first end of the first main winding M1, and the second end of the first main winding M1 is connected to the second end of the secondary winding A. A first lead 4 and a second lead 5 are respectively led out from the first end and the second end of the first main winding M1, and a third lead 6 and a fourth lead 7 are respectively led out from both ends of the second main winding M2.
[0029] During application, 1) short-circuit the first lead 4 and the third lead 6, and short-circuit the second lead 5 and the fourth lead 7. At this time, the first main winding M1 and the second main winding M2 are in a parallel state, and an external power supply of 110 - 115V, 50 / 60Hz can be connected between the third lead 6 and the fourth lead 7 to drive the motor assembly 1; 2) connect the third lead 6 and the second lead 5. At this time, the first main winding M1 and the second main winding M2 are in a series state, and an external power supply of 220 - 230V, 50 / 60Hz can be connected between the fourth lead 7 and the first lead 4 to drive the motor assembly 1, meeting the voltage and frequency range requirements of 220 - 230V / 50Hz / 60Hz or 110 - 115V / 50Hz / 60Hz. The product has strong adaptability and is convenient to use in different countries or regions.
[0030] It should be noted that the compatibility of 50Hz and 60Hz can be achieved by designing the motor parameters, which is common technical knowledge mastered by those skilled in the art and will not be elaborated here in detail.
[0031] In some embodiments, a fifth lead 8 and a sixth lead 9 are respectively led out from the first end of the first main winding M1 and the first end of the secondary winding A. The capacitor 3 is detachably connected to the first end of the first main winding M1 and the first end of the secondary winding A through the fifth lead 8 and the sixth lead 9, which is not only convenient for wiring but also conducive to the maintenance and replacement of the capacitor 3.
[0032] For the convenience of wiring, the first lead 4, the second lead 5, the third lead 6, the fourth lead 7 and the ground wire 10 are wound together with a winding tube. The fifth lead 8 and the sixth lead 9 are respectively sleeved with heat shrink tubes and then covered with a PVC tube for the two motor capacitor wires. The two motor capacitor wires are connected to the two lead-out wires on the capacitor 3 with staggered lengths to avoid short circuits and electric leakage.
[0033] Combined with Figure 1 、Figure 6 , Figure 7 As shown, a low-voltage wiring mark 11 and a high-voltage wiring mark 12 are also provided on the body of the oil-free compressor, so that users can perform low-voltage wiring or high-voltage wiring. In this embodiment, the first lead 4 is an orange wire (ORANGER), the second lead 5 is a white wire (WHITE), the third lead 6 is a black wire (BLACK), the fourth lead 7 is a blue wire (BLUE), the fifth lead 8 is a brown wire (BROWN), and the sixth lead 9 is a red wire (RED). Obviously, the colors of the leads can be adjusted according to actual needs, not limited to this embodiment.
[0034] Combined with Figure 2 As shown, the capacitor 3 is connected to the cylinder head portion 201 of the cylinder assembly 2 and is suspended away from the cylinder head 201. In this way, it is convenient for wiring the capacitor 3 and avoids the capacitor being affected by high temperature and affecting its performance. Further, preferably, a heat dissipation channel communicating with the heat dissipation fan 202 is also provided on the cylinder head 201, and the air outlet of the heat dissipation channel corresponds to the position where the capacitor 3 is located, so that the working temperature around the capacitor 3 can be better reduced, and thus the parameter performance required for the common use of 50Hz and 60Hz can be better met.
[0035] It should be noted that the other specific constitutions of the motor assembly and the cylinder assembly of the oil-free compressor are all common technical knowledge mastered by those skilled in the art, and the capacitor 3 is a commercially available product.
[0036] In addition, it should be noted that in the description of the present invention, for orientation terms, such as terms "center", "horizontal", "vertical", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the indicated orientation and position relationship are based on the orientation or position relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific protection scope of the present invention.
[0037] In addition, such as terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, the meaning of "at least" is one or more than one, unless otherwise clearly and specifically defined.
[0038] In the present utility model, unless otherwise clearly defined and limited, terms such as "assembled", "connected", and "joined" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may also be a mechanical connection; it may be directly connected, or connected through an intermediate medium, and may be internally connected and communicated between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0039] In the utility model, unless otherwise specified and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "below", and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "above", "below", and "beneath" the second feature includes the first feature being directly below or obliquely below the second feature, or merely indicating that the horizontal height of the first feature is lower than that of the second feature.
[0040] Through the description of the above structure and principle, those skilled in the art should understand that the present utility model is not limited to the above specific embodiments. Improvements and substitutions using well-known technologies in the art based on the present utility model fall within the protection scope of the present utility model, and the protection scope of the present utility model shall be defined by each claim item and its equivalents. The parts not described in the specific embodiments are all prior art or common general knowledge.
Claims
1. An oil-free compressor with dual voltages and shared by 50Hz and 60Hz, characterized in that, It includes a motor assembly, a cylinder assembly, and an external capacitor; the motor assembly includes a stator and a rotor, and a secondary winding, a first main winding, and a second main winding are provided on the stator; the first end of the capacitor is connected to the first end of the secondary winding, the second end of the capacitor is connected to the first end of the first main winding, and the second end of the first main winding is connected to the second end of the secondary winding; a first lead and a second lead are respectively led out from the first end and the second end of the first main winding, and a third lead and a fourth lead are respectively led out from both ends of the second main winding.
2. The oil-free compressor with dual voltages and shared by 50Hz and 60Hz according to claim 1, characterized in that A fifth lead and a sixth lead are respectively led out from the first end of the first main winding and the first end of the secondary winding, and a detachable connection is formed between the capacitor, the first end of the first main winding, and the first end of the secondary winding through the fifth lead and the sixth lead.
3. The oil-free compressor with dual voltages and shared by 50Hz and 60Hz according to claim 2, characterized in that, The fifth lead and the sixth lead are respectively sleeved with heat shrink tubes and then sleeved with PVC tubes for two motor capacitor wires, and the two motor capacitor wires are connected to the two lead-out wires on the capacitor with staggered lengths.
4. A oil-free compressor with dual voltages and shared for 50Hz and 60Hz, as claimed in claim 1, wherein The first lead, the second lead, the third lead, the fourth lead, and the ground wire are wound together with a winding tube.
5. A oil-free compressor with dual voltages and shared by 50Hz and 60Hz, as claimed in claim 1, wherein Low-voltage wiring marks and high-voltage wiring marks are provided on the body of the oil-free compressor.
6. A oil-free compressor with dual voltages and shared by 50Hz and 60Hz, as claimed in claim 1, wherein The capacitor is connected to the cylinder head part of the cylinder assembly and is suspended away from the cylinder head.
7. An oil-free compressor with dual voltages and shared by 50Hz and 60Hz, as claimed in claim 6, wherein A heat dissipation channel communicating with a cooling fan is provided on the cylinder head, and the air outlet of the heat dissipation channel corresponds to the position where the capacitor is located.