Liquid level regulating device, compressor housing and compressor

Abstract

The present invention provides a liquid level regulating device, a compressor housing and a compressor, which relate to the technical field of compressors and solve the technical problem that the compressor terminal is too close to the liquid medium surface and the insulation resistance is prone to decrease sharply. The liquid level regulating device includes a regulating device body, which is arranged at the bottom of the compressor housing. The regulating device body has a volume cavity, which is connected to the inner cavity of the compressor housing. At least part of the liquid medium in the compressor housing is introduced into the volume cavity so that the distance between the wiring device on the compressor housing and the liquid medium surface in the compressor housing is increased. The present invention provides a scroll compressor that is easy to obtain, does not change the installation height of the compressor, and can lower the oil level. The housing is protruded downward so that part of the liquid medium can be filled into the protruding part of the housing, thereby avoiding the problem of the insulation resistance of the compressor decreasing sharply in static state and meeting the electrical use requirements.

Description

Technical Field

[0001] The present invention relates to the technical field of compressors, and in particular to a liquid level regulating device, a compressor housing and a compressor. Background Art

[0002] The terminal posts of most existing horizontal scroll compressors are arranged horizontally on the outside of the compressor housing. This terminal post arrangement structure makes it very convenient to connect the compressor to the air conditioning system.

[0003] The applicant has found that the prior art has at least the following technical problems:

[0004] like Figure 1 As shown in the figure, since the mixture of lubricating oil and refrigerant in the compressor is located at the bottom of the inner cavity of the compressor shell, and the liquid mixture has a certain depth, the arrangement of the terminal horizontally in the middle of the compressor shell is likely to cause the liquid surface of the lubricating oil and refrigerant mixture in the compressor to contact the terminal or be too close to the terminal, resulting in a sharp drop in the insulation resistance value of the compressor, resulting in the problem of electrical safety failing to pass the acceptance, which needs to be solved urgently; Figure 2 As shown, the exhaust pipe arranged on the existing compressor housing is located on the circumferential side of the end cover. In order to make way for the mounting components located in the housing and the end cover, the height of the end cover needs to be increased, which not only increases the material consumption but also increases the equipment cost. Summary of the invention

[0005] The object of the present invention is to provide a liquid level regulating device, a compressor housing and a compressor, so as to solve the technical problem in the prior art that the compressor terminal is too close to the liquid surface of the liquid medium, which easily leads to a sharp decrease in insulation resistance.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] The present invention provides a liquid level regulating device, comprising a regulating device body, wherein the regulating device body is arranged at the bottom of a compressor housing, and wherein a volume cavity is provided in the regulating device body, wherein the volume cavity is connected to an inner cavity of the compressor housing, and at least a portion of the liquid medium in the compressor housing is introduced into the volume cavity, thereby increasing the distance between a wiring device on the compressor housing and a liquid level of the liquid medium in the compressor housing.

[0008] As a further improvement of the present invention, the regulating device body is a trough structure with an open top. The longitudinal section of the trough structure can be rectangular, semicircular, semi-elliptical, trapezoidal, semi-regular hexahedron, inverted triangle or other shapes, or the longitudinal section of the volume cavity of the trough structure is rectangular, semicircular, semi-elliptical, trapezoidal, semi-regular hexahedron, inverted triangle or other shapes. Of course, the shapes of the regulating device body and the volume cavity are not limited to the above listed ones.

[0009] As a further improvement of the present invention, the length of the regulating device body is not greater than the length of the compressor casing.

[0010] As a further improvement of the present invention, the length of the regulating device body is smaller than the length of the compressor housing, that is, the length of the volume cavity on the regulating device body is smaller than the length of the inner cavity of the compressor housing.

[0011] As a further improvement of the present invention, the length of the regulating device body is equal to the length of the compressor housing, that is, the length of the volume cavity on the regulating device body is equal to the length of the inner cavity of the compressor housing.

[0012] The present invention provides a compressor housing, comprising a wiring device arranged on the compressor housing, and the liquid level regulating device arranged at the bottom of the compressor housing.

[0013] As a further improvement of the present invention, the compressor housing includes a shell body and end covers arranged at both ends of the shell body, the wiring device is installed in the middle of the outer side of the shell body; and the liquid level adjustment device is arranged at the bottom of the shell body.

[0014] As a further improvement of the present invention, the compressor housing includes a shell body and end covers arranged at both ends of the shell body, the wiring device is installed in the middle of the outer side of the shell body; the liquid level adjustment device is arranged at the bottom of the shell body and the end covers.

[0015] As a further improvement of the present invention, the regulating device body and the shell body are an integrally formed structure, and the length of the regulating device body is not greater than the length of the shell body. The regulating device body is a groove structure formed by partially or entirely protruding downward from the bottom of the shell body, and the length of the groove structure can be less than the length of the shell body, or the length of the groove structure can be equal to the length of the shell body. Since there are end covers at both ends of the shell body, the groove structure is only provided at the bottom of the shell body, and the length of the groove structure is less than the total length of the compressor housing.

[0016] As a further improvement of the present invention, the regulating device body and the shell body, the regulating device body and the end cover are all integrally formed structures, and the regulating device body is the same length as the compressor shell. The regulating device body is a trough structure formed by the shell body and the end covers at both ends protruding downward, the length of the trough structure is the same as the length of the compressor shell, the downward protruding parts on the end covers form the two end side walls of the trough structure, and the downward protruding parts at the bottom of the shell body form the two side walls and the bottom plate of the trough structure, and a complete trough structure with a volume cavity is formed by the combination of the shell body and the protruding parts of the end covers.

[0017] As a further improvement of the present invention, the compressor housing is a horizontal structure.

[0018] As a further improvement of the present invention, the wiring device is installed on the outer wall above the horizontal center axis plane of the compressor housing.

[0019] As a further improvement of the present invention, the wiring device is a horizontally arranged wiring post.

[0020] As a further improvement of the present invention, an exhaust pipe is arranged on the axial end surface of the end cover.

[0021] The present invention provides a compressor, comprising the compressor housing.

[0022] As a further improvement of the present invention, the compressor is a horizontal scroll compressor.

[0023] As a further improvement of the present invention, the horizontal scroll compressor is vehicle-mounted.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] The present invention integrally forms a downwardly protruding regulating device at the bottom of the compressor housing, and the regulating device has a volume cavity. Without changing the installation height of the compressor, a part of the mixed liquid of lubricating oil and refrigerant in the inner cavity of the compressor housing can be filled and flowed into the protruding part of the bottom of the housing, i.e., the regulating device, thereby achieving the effect of lowering the oil level, effectively solving the problem that the compressor terminal is too close to the oil level, increasing the distance between the terminal and the oil level, thereby avoiding the problem that the insulation resistance of the compressor decreases sharply under static state, and meeting the electrical use requirements of vehicle-mounted compressors. The regulating device provided by the present invention is easy to obtain and has a simple structure, and is suitable for large-scale promotion and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 It is a front view of a horizontal scroll compressor housing in the prior art;

[0028] Figure 2 yes Figure 1 Side view of

[0029] Figure 3 It is a right side structural schematic diagram of the first embodiment of the liquid level regulating device of the present invention;

[0030] Figure 4 yes Figure 3 Middle AA section view;

[0031] Figure 5 It is a left structural schematic diagram of the first embodiment of the liquid level regulating device of the present invention;

[0032] Figure 6 is a top view of a first embodiment of a liquid level regulating device of the present invention;

[0033] Figure 7 It is a right side structural schematic diagram of the second embodiment of the liquid level regulating device of the present invention;

[0034] Figure 8 yes Figure 7 Middle BB section view;

[0035] Fig. 9 It is a left structural schematic diagram of the second embodiment of the liquid level regulating device of the present invention.

[0036] In the figure, 1 is the regulating device body; 2 is the compressor housing; 21 is the housing body; 22 is the end cover; 3 is the wiring device; 4 is the exhaust pipe; 5 is the base; 100 is the liquid medium; and 200 is the liquid level. DETAILED DESCRIPTION

[0037] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0038] Embodiment 1:

[0039] like Figure 3 As shown, the present invention provides a liquid level regulating device, including a regulating device body 1, the regulating device body 1 is arranged at the bottom of the compressor housing 2, and a volume cavity is provided in the regulating device body 1, and the volume cavity is connected with the inner cavity of the compressor housing 2, and at least part of the liquid medium in the compressor housing 2 is introduced into the volume cavity so that the distance between the wiring device 3 on the compressor housing 2 and the liquid level 200 of the liquid medium 100 in the compressor housing 2 is increased. The present invention can effectively solve the problem of the terminal on the compressor housing 2 being close to the oil level 200 by filling a mixed liquid of part of the lubricating oil and the refrigerant into the regulating device body 1 at the bottom of the compressor housing 2, thereby lowering the oil level 200, and increasing the distance between the terminal and the liquid level 200, thereby avoiding the problem of the insulation resistance of the compressor being sharply reduced in static state, and meeting the electrical use requirements of the vehicle-mounted compressor.

[0040] like Figure 4 As shown, the regulating device body 1 is a trough structure with an open top, and the longitudinal section shape of the trough structure can be rectangular, semicircular, semi-elliptical, trapezoidal, semi-regular hexahedron, inverted triangle or other shapes, or the longitudinal section shape of the volume cavity of the trough structure is rectangular, semicircular, semi-elliptical, trapezoidal, semi-regular hexahedron, inverted triangle or other shapes. Of course, the shapes of the regulating device body 1 and the volume cavity are not limited to the above-listed ones; when it is necessary to lower the liquid level 200 height, a technical solution in which the length of the regulating device body 1 is less than the length of the compressor housing 2 can be adopted; when it is necessary to lower the liquid level 200 height greatly, the length of the regulating device body 1 can be equal to the length of the compressor housing 2, so that the liquid medium flowing into the regulating device body 1 is increased, thereby greatly reducing the liquid level 200 height.

[0041] like Figure 6 As shown, the present invention provides a compressor housing, including a wiring device 3 arranged on the compressor housing 2, and a liquid level regulating device arranged at the bottom of the compressor housing 2. A base 5 is arranged at the bottom of the compressor housing 2 outside the liquid level regulating device, and the height of the liquid level regulating device is not greater than the height of the base 5. The technical solution that can introduce part of the liquid medium into the liquid level regulating device between the base and the bottom of the compressor housing 2 without changing the installation height of the compressor housing is used to achieve the effect of lowering the oil level, increase the distance between the terminal and the liquid level 200, and avoid the problem of a sharp drop in insulation resistance value caused by too close a distance. The technical solution of the present invention effectively keeps the oil level away from the terminal without reducing the amount of oil and without causing the problem of insufficient oil supply, thereby reducing the possibility of contact between the terminal and the refrigerant.

[0042] like Figure 4 As shown, in the present invention, the compressor housing 2 includes a shell body 21 and end covers 22 arranged at both ends of the shell body 21. In order to facilitate wiring, the wiring device 3 is installed on the outer side wall corresponding to the horizontal axial surface of the shell body 2, and the wiring device 3 is horizontally arranged along the axial direction of the shell body 21; since the compressor housing 2 includes the shell body 21 and the end covers 22 at both ends, the length of the compressor housing 2 is equal to the sum of the length of the shell body 21 and the length of the end covers 22 at both ends. In order to save materials and reduce processing steps, the length of the adjustment device body 1 formed by the downward protrusion can be different from the length of the compressor housing 2; the relationship between the length of the adjustment device basic body 1 and the length of the compressor housing 2 can be selected according to actual needs.

[0043] When the length of the regulating device body 1 is less than the length of the compressor housing 2, the liquid level regulating device is arranged at the bottom of the housing body 21, and is a groove structure formed by a part or all of the bottom of the housing body 21 protruding downward; when the liquid level regulating device body 1 is located at the bottom of the housing body 21, the following two specific design schemes are included. The first one is as follows: Figure 4In the technical solution shown, the regulating device body 1 and the shell body 21 are an integrally formed structure, and a local area of ​​the bottom of the shell body 21 protrudes downward to form the liquid level regulating device body 1. In this solution, the length of the liquid level regulating device body 1 is less than the length of the shell body 21. When the shell body 21 is processed, the local area of ​​the bottom protrudes downward to form the regulating device body 1, and the width of the regulating device body 1 is less than the diameter of the shell body 21; the second type (not shown in the drawings) is that the regulating device body 1 and the shell body 21 are an integrally formed structure, and the entire length direction of the bottom of the shell body 21 protrudes downward to form the liquid level regulating device body 1. In this solution, the length of the liquid level regulating device body 1 is equal to the length of the shell body 21. When the shell body 21 is processed, the bottom protrudes downward to form the regulating device body 1, and the width of the regulating device body 1 is less than the diameter of the shell body 21.

[0044] As an optional embodiment, the wiring device 3 is a horizontally arranged wiring post. And in the present invention, the compressor housing is a horizontal structure.

[0045] In order to further increase the distance between the terminal and the liquid surface 200, the present invention also adopts a technical solution in which the terminal is installed within an angle range of 180° upward from the horizontal axis of the center of the shell body 21. Figure 6 As shown, the height of the compressor terminal is increased, away from the oil level 200 inside the compressor housing, and finally the problem of a sharp drop in insulation resistance value caused by the terminal being too close to the oil level 200 or in contact with the oil level 200 when the compressor is static is solved.

[0046] In the present invention, the exhaust pipe 4 is opened on the axial end surface of the end cover 22, which can reduce the height of the end cover 22 and achieve the purpose of reducing material costs.

[0047] The present invention provides a compressor, including a compressor housing 2. The compressor is a horizontal scroll compressor, and the horizontal scroll compressor is vehicle-mounted.

[0048] Embodiment 2:

[0049] The difference between Example 2 and Example 1 is that the liquid level regulating device is arranged at the bottom of the shell body 21 and the bottom of the end cover 22, and the regulating device body 1 and the shell body 21, and the regulating device body 1 and the end cover 22 are all integrally formed structures. This Example 2 also has two optional design schemes. The first one is as follows: Figure 7-Figure 9As shown, the regulating device body 1 is arranged at the bottom of the shell body 21 and the bottom of the two end covers 22, that is, the shell body 21 and the bottom of the two end covers 22 are both protruding downwards and spliced ​​together to form the regulating device body 1, the downwardly protruding parts on the end covers 22 form the two end side walls of the trough structure, and the downwardly protruding parts at the bottom of the shell body 22 form the two side walls and the bottom plate of the trough structure, and a complete trough structure with a volume cavity is formed by the combination of the protruding parts of the shell body 21 and the end covers 22. The second type (not shown in the drawings), the regulating device body 1 is arranged at the bottom of the shell body 21 and the bottom of one of the end covers 22.

[0050] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A liquid level regulating device, suitable for a compressor housing, wherein the compressor housing is a horizontal structure, characterized in that: The regulating device comprises a regulating device body (1), the regulating device body (1) being arranged at the bottom of a compressor housing (2), the regulating device body (1) having a volume cavity therein, the volume cavity being communicated with the inner cavity of the compressor housing (2), at least part of the liquid medium (100) in the compressor housing (2) being introduced into the volume cavity, thereby increasing the distance between the wiring device (3) on the compressor housing (2) and the liquid medium level (200) in the compressor housing (2); The regulating device body (1) is a trough structure with an open top; The length of the regulating device body (1) is not greater than the length of the compressor housing (2); when the height of the liquid level (200) needs to be lowered to a small extent, the length of the regulating device body (1) is less than the length of the compressor housing (2); when the height of the liquid level (200) needs to be lowered to a large extent, the length of the regulating device body (1) is equal to the length of the compressor housing (2), thereby increasing the amount of liquid medium flowing into the regulating device body (1), thereby lowering the height of the liquid level (200).

2. A compressor housing, characterized in that: It comprises a wiring device (3) arranged on the compressor housing (2), and a liquid level regulating device (300) as claimed in claim 1 arranged at the bottom of the compressor housing (2).

3. The compressor housing according to claim 2, characterized in that: The compressor housing (2) comprises a housing body (21) and end covers (22) arranged at both ends of the housing body (21); the wiring device (3) is installed in the middle of the outer side of the housing body (21); and the liquid level regulating device (300) is arranged at the bottom of the housing body (21).

4. The compressor housing according to claim 2, characterized in that: The compressor housing (2) comprises a housing body (21) and end covers (22) arranged at both ends of the housing body (21); the wiring device (3) is installed in the middle of the outer side of the housing body (21); and the liquid level regulating device (300) is arranged at the bottom of the housing body (21) and the end covers (22).

5. The compressor housing according to claim 3, characterized in that: The regulating device body (1) and the shell body (21) are an integrally formed structure, and the length of the regulating device body (1) is not greater than the length of the shell body (21).

6. The compressor housing according to claim 4, characterized in that: The regulating device body (1) and the shell body (21), as well as the regulating device body (1) and the end cover (22) are all integrally formed structures, and the regulating device body (1) and the compressor shell (2) are of the same length.

7. The compressor housing according to claim 6, characterized in that: The wiring device (3) is mounted on an outer wall of the compressor housing (2) above the horizontal center axis plane.

8. The compressor housing according to claim 3 or 4, characterized in that: An exhaust pipe (4) is provided on the axial end surface of the end cover (22).

9. A compressor, characterized in that: Comprising a compressor housing (2) as claimed in any one of claims 3 to 8.

10. The compressor according to claim 9, characterized in that: The compressor is a horizontal scroll compressor.

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