JP7161114B2 - compressor - Google Patents

Description

The present disclosure relates to compressors.

2. Description of the Related Art Conventionally, a compressor including a casing that houses a compression mechanism and a temperature sensor that detects the temperature of the casing is known (for example, Patent Document 1).

In the compressor disclosed in Patent Document 1, the temperature sensor is held on the outer surface of the casing by a holding structure provided on the outer surface of the casing. The holding structure has a sensor mounting plate. The sensor mounting plate has a plate-like shape and is provided on the outer surface of the casing along the outer surface of the casing. A through hole is formed in the sensor mounting plate so as to face the outer surface of the casing. A housing area for housing the temperature sensor is formed inside the through hole. At the edge of the housing area, a stepped portion is formed between the outer surface of the casing and the temperature sensor mounting plate. The stepped portion has a height corresponding to the plate thickness of the sensor mounting plate. The step prevents the temperature sensor from moving out of the housing area.

JP 2020-002926 A

However, since the height of the stepped portion is only as high as the thickness of the sensor mounting plate, there is a possibility that the temperature sensor will climb over the stepped portion and climb onto the sensor mounting plate, thereby moving out of the accommodation area. .

It is an object of the present disclosure to allow temperature sensors to be retained within a containment area.

A first aspect of the present disclosure is directed to a compressor (10). The compressor (10) has a holding member (100). The holding member (100) includes a fixed portion (110) fixed to the casing (20) in contact with the outer surface (28) of the casing (20) housing the compression mechanism (40), and an outer surface of the casing (20). A housing portion ( 120) and

In the first aspect, since the housing portion (120) is spaced from the outer surface (28) of the casing (20), the temperature sensor (90) housed in the housing area (R) is exposed to the casing (20). The housing (120) can be contacted at a location spaced apart from the outer surface (28). Thereby, the temperature sensor (90) can be held within the accommodation area (R).

In a second aspect of the present disclosure, in the first aspect, the accommodating portion (120) of the holding member (100) includes first portions (121) extending in the same direction from the fixing portion (110). and a second portion (122), wherein the accommodation area (R) is formed between the first portion (121) and the second portion (122).

In the second aspect, movement of the temperature sensor (90) accommodated in the accommodation area (R) can be restricted by both the first portion (121) and the second portion (122).

A third aspect of the present disclosure is the second aspect, wherein the accommodation area (R) is located on the tip side of the extension direction (X) of each of the first portion (121) and the second portion (122). is opened at

In the third aspect, the temperature sensor (90) can be easily installed in the accommodation area (R) from the open location in the accommodation area (R).

In a fourth aspect of the present disclosure, in the second aspect, the accommodating portion (120) of the holding member (100) is arranged on the opposite side of the fixing portion (110) across the accommodating region (R). It further includes a third portion (123) positioned to connect the ends (121a) and (122a) of the first portion (121) and the second portion (122) in the extending direction (X).

In the fourth aspect, the third portion (123) can effectively prevent the temperature sensor (90) from moving out of the accommodation area (R).

In a fifth aspect of the present disclosure, in any one of the first to fourth aspects, a power supply section (140) for supplying power to the temperature sensor (90) is provided outside the casing (20). is provided, and the outer surface (28) of the casing (20) includes a power supply unit-side area (28d) positioned close to the power supply unit (140), and the holding member (100) is located in the power supply unit-side area (28d ).

In the fifth aspect, the difficulty of installing the temperature sensor (90) by the operator can be alleviated.

According to a sixth aspect of the present disclosure, in any one of the first to fifth aspects, the accommodating portion (120) of the holding member (100) is located on the outer surface (28) of the casing (20). Of these, it faces the portion (28a) which is a curved surface or the portion (28b) which is an inclined surface inclined with respect to the extending direction (X) of the accommodating portion (120).

In the sixth aspect, the curved surface portion (28a) or the inclined surface portion (28b) is used to easily separate the housing portion (120) from the outer surface (28) of the casing (20). be able to.

In a seventh aspect of the present disclosure, in the sixth aspect, each of the curved surface portion (28a) and the inclined surface portion (28b) extends downward with respect to the extending direction (X). tilt.

In the seventh aspect, when painting the outer surface (28) of the casing (20), the portion (28a) that is a curved surface or the portion (28b) that is an inclined surface is used to prevent excess paint from accumulating in the accommodation area (R). ) can flow along.

According to an eighth aspect of the present disclosure, in any one of the first to seventh aspects, the holding member (100) holds the temperature sensor (90) arranged in the accommodation area (R) as the temperature sensor (90). It further comprises a pressing member (130) that presses against the outer surface (28) of the casing (20).

In the eighth aspect, the temperature sensor (90) can be pressed against the outer surface (28) of the casing (20) by the pressing member (130).

According to a ninth aspect of the present disclosure, in the eighth aspect, the pressing member (130) is integrally formed with the fixing portion (110).

In the ninth aspect, the number of parts of the holding member (100) can be reduced.

According to a tenth aspect of the present disclosure, in the eighth or ninth aspect, the central portion of the pressing member (130) in the spacing direction (Y) perpendicular to the extending direction (X) of the accommodation portion (120) The position (130Y) of is spaced from the central position (RY) of the accommodation area (R).

In the tenth aspect, the portion of the temperature sensor (90) shifted in the spacing direction (Y) from the central portion can be pressed against the outer surface (28) of the casing (20) by the pressing member (130).

FIG. 1 is a perspective view of a scroll compressor according to Embodiment 1 of the present invention. FIG. 2 is a cross-sectional view of a scroll compressor. FIG. 3 is a plan view showing a state in which the holding member is installed in the casing. FIG. 4 is a perspective view of a holding member. FIG. 5 is a side view of a holding member; 6 is a side view showing a holding member of Embodiment 2. FIG. 7 is a side view showing a holding member of Embodiment 3. FIG. 8 is a side view showing a holding member of Embodiment 4. FIG. FIG. 9 is a plan view showing an example of an installation location of a holding member. FIG. 10 is a plan view showing an example of the position of the pressing member with respect to the housing area.

An embodiment of the present invention will be described with reference to the drawings. In the drawings, the same or corresponding parts are denoted by the same reference numerals, and detailed description and description of the accompanying effects will not be repeated.

<<Embodiment 1>>
A scroll compressor (10), which is an example of the compressor of the present invention, will be described with reference to FIGS. 1 and 2. FIG. FIG. 1 is a perspective view of a scroll compressor (10) according to Embodiment 1 of the present invention. FIG. 2 is a cross-sectional view of the scroll compressor (10) according to Embodiment 1 of the present invention. A scroll compressor (10) (hereinafter sometimes simply referred to as a compressor (10)) is provided in a refrigerant circuit (not shown) of a vapor compression refrigeration cycle, and compresses a refrigerant, which is a working fluid. It is. In the refrigerant circuit, refrigerant compressed by the compressor (10) is condensed by the condenser, decompressed by the decompression mechanism, evaporated by the evaporator, and drawn into the compressor (10).

As shown in FIGS. 1 and 2, the compressor (10) includes a casing (20), and an electric motor (30) and a compression mechanism (40) housed in the casing (20). The casing (20) is formed in a vertically long cylindrical shape and configured as a closed dome.

The electric motor (30) includes a stator (31) fixed to the casing (20) and a rotor (32) arranged inside the stator (31). The drive shaft (11) penetrates through and is fixed to the axial center of the rotor (32). The electric motor (30) is connected to a power source via an inverter device, and is configured to have a variable rotational speed (operating frequency).

The casing (20) has a high-pressure dome shape filled with a high-pressure refrigerant. The body (21) of the casing (20) is formed into a tubular shape with both upper and lower ends opened. The upper portion (22) of the casing (20) is bowl-shaped and fixed (welded) to the upper end of the body (21) so as to cover the opening at the lower end of the body (21). The bottom (23) of the casing (20) is bowl-shaped and fixed (welded) to the lower end of the body (21) so as to cover the upper end opening of the body (21).

An oil reservoir (24) in which lubricating oil is stored is formed in the bottom (23) of the casing (20). The pressure of the high-pressure refrigerant in the casing (20) acts on the lubricating oil in the oil reservoir (24). A discharge pipe (13) is connected to the body (21) of the casing (20), and a suction pipe (12) and an injection pipe (81) are connected to the upper part (22) of the casing (20). . A housing (50) located above the electric motor (30) and a compression mechanism (40) located above the housing (50) are fixed to the body (21) of the casing (20). .

The drive shaft (11) extends vertically along the axis of the casing (20). drive shaft (
11) has a main shaft portion (14) and an eccentric portion (15) formed at the upper end of the main shaft portion (14). A lower portion of the main shaft (14) is rotatably supported by a lower bearing (25). An upper portion of the main shaft (14) is rotatably supported by an upper bearing (51).

An oil pump (11a) is connected to the lower end of the drive shaft (11). The oil pump (11a) conveys the oil in the oil reservoir (24) upward. This oil is supplied to each bearing (22, 51) and each sliding portion of the compression mechanism (40) via the oil supply passage (16) of the drive shaft (11).

The housing (50) is fixed to the body (21) of the casing (20). This divides the interior of the casing (20) into a lower space (27) below the housing (50) and an upper space (26) above the housing (50). The lower space (27) houses the electric motor (30), and the upper space (26) houses the compression mechanism (40). The housing (50) has an annular portion (52) formed in the outer peripheral portion and a recess (53) formed in the upper portion of the central portion.

The compression mechanism (40) has a fixed scroll (60) provided above the housing (50) and a movable scroll (70) provided between the fixed scroll (60) and the housing (50). there is In the compression mechanism (40), the wrap (62) of the fixed scroll (60) and the wrap (72) of the movable scroll (70) mesh with each other, and a compression chamber ( 41) is formed.

The fixed scroll (60) includes an end plate (61) and an involute wrap (62) formed in front of the end plate (61). The end plate (61) has an outer peripheral wall (63) positioned on the outer peripheral side and formed continuously with the wrap (62). The end face of the wrap (62) of the fixed scroll (60) and the end face of the outer peripheral wall (63) are formed substantially flush.

The orbiting scroll (70) includes an end plate (71), an involute wrap (72) formed in front of the end plate (71), and a boss formed in the center of the rear surface of the end plate (71). a part (73); The eccentric portion (15) of the drive shaft (11) is inserted into the inner space (73a) of the boss portion (73) to connect the drive shaft (11).

The movable scroll (70) is arranged such that the wrap (72) meshes with the wrap (62) of the fixed scroll (60). A compression chamber (41) is formed between the contact portions of the wraps (62, 72) of the fixed scroll (60) and the orbiting scroll (70).

A suction port (63a) is formed in the outer peripheral wall (63) of the fixed scroll (60), and the outflow end of the suction pipe (12) is connected to the suction port (63a). A discharge port (65) is formed in the center of the end plate (61) of the fixed scroll (60). A high-pressure chamber (66) having a discharge port (65) is formed on the rear surface of the fixed scroll (60). The high pressure chamber (66) is provided with a discharge valve (67) for opening and closing the discharge port (65). The discharge valve (67) is a reed valve that opens the discharge port (65) when the discharge pressure in the compression chamber exceeds a predetermined value. A refrigerant passage (not shown) is formed in the fixed scroll (60) and the housing (50) for sending the refrigerant discharged from the high pressure chamber (66) to the lower space (27) side. That is, the lower space (27) becomes a high-pressure atmosphere corresponding to the discharge pressure of the refrigerant.

A rotation preventing member (46) for the orbiting scroll (70) is formed on the upper side of the annular portion (52) of the housing (50). The rotation-preventing member (46) is composed of, for example, an Oldham's coupling. The Oldham coupling, which is the rotation-preventing member (46), is provided on the upper surface of the annular portion (52) of the housing (50) and is slidably fitted between the end plate (71) of the orbiting scroll (70) and the housing (50). .

The scroll compressor (10) has an intermediate pressure introduction passageway (80). The intermediate pressure introduction passageway (80) is composed of an injection pipe (81) and an injection port (82). The injection pipe (81) axially penetrates the end plate (61) of the fixed scroll (60) and communicates with the injection port (82). In other words, the intermediate pressure introduction passageway (80) communicates with the compression chamber (41) during compression of the compression mechanism (40). A check valve (not shown) is provided in the injection pipe (81). The check valve permits the flow of refrigerant from the injection pipe (81) to the compression chamber (41) and prohibits the flow of refrigerant from the compression chamber (41) of the compression mechanism (40) to the injection pipe (81) side. It constitutes a backflow prevention mechanism.

The compressor (10) further includes a temperature sensor (90) and a holding member (100).

The temperature sensor (90) is a sensor that detects the temperature of the casing (20). The temperature sensor (90) is a contact temperature sensor, such as a thermistor. In Embodiment 1, the temperature sensor (90) has a cylindrical shape. The temperature sensor (90) detects the detected temperature of the casing (20) (substantially, the temperature of the refrigerant flowing in the casing (20)) via a wire or wirelessly to control the operation of the compressor (10). department (not shown).

The holding member (100) holds the temperature sensor (90) in contact with the outer surface (28) of the casing (20). A detailed description of the holding member (100) will be given later.

Operation of the compressor (10) will be described.

When electric power is supplied to the electric motor (30), the orbiting scroll (70) of the compression mechanism (40) is driven to rotate. Since the orbiting scroll (70) is prevented from rotating by the rotation preventing member (46), it performs eccentric motion about the axis of the drive shaft (11). As the orbiting scroll (70) moves eccentrically, the volume of the compression chamber (41) shrinks toward the center. As a result, the low-pressure refrigerant in the suction pipe (12) flows into the compression chamber (41) through the suction port (63a) and is compressed in the compression chamber (41). The refrigerant compressed in the compression chamber (41) is discharged through the discharge port (65) into the high pressure chamber (66). The high pressure gas refrigerant in the high pressure chamber (66) flows into the lower space (27) through passages in the fixed scroll (60) and the housing (50). Refrigerant in the lower space (27) is discharged to the outside of the casing (20) through the discharge pipe (13).

During operation of the compressor (10), the interior of the lower space (27) is kept in a high pressure state, and high pressure acts on the lubricating oil in the oil reservoir (24). The lubricating oil in the oil reservoir (24) flows from the lower end to the upper end of the oil supply passage (16) of the drive shaft (11) and flows through the upper end opening of the eccentric portion (15) of the drive shaft (11) to the orbiting scroll (70). ) into the inner space (73a) of the boss (73). The oil supplied to the boss (73) lubricates the sliding surface between the boss (73) and the eccentric portion (15) of the drive shaft (11).

The holding member (100) will be described with reference to FIGS. 3 to 5. FIG. FIG. 3 is a plan view showing the holding member (100) installed in the casing (20). In other words, the plan view of the casing (20) is a view of the casing (20) seen from the axial direction of the casing (20). The axial direction of the casing (20) is the direction in which imaginary lines extending through the centers of the openings at the upper and lower ends of the body (21) (see FIG. 2) of the casing (20) extend. FIG. 4 is a perspective view of the holding member (100). FIG. 5 is a side view of the holding member (100).

As shown in FIGS. 3-5, the holding member (100) is, for example, a member made of metal. The holding member (100) includes a fixing portion (110) and a housing portion (120).

The fixed part (110) has a contact part (111) that contacts the outer surface (28) of the casing (20). In Embodiment 1, the contact portion (111) is formed at the edge of the fixed portion (110). The fixed part (110) is fixed to the outer surface (28) of the casing (20) by welding the contact part (111) of the fixed part (110) in contact with the outer surface (28) of the casing (20). be. In addition, there are no particular restrictions on the portion of the fixing portion (110) that contacts and is welded to the outer surface (28) of the casing (20).

The accommodation portion (120) has a first portion (121) and a second portion (122). Each of the first portion (121) and the second portion (122) has a shape extending from the fixing portion (110) while being spaced apart from the outer surface (28) of the casing (20). A cavity (S) is formed between each of the first portion (121) and the second portion (122) and the outer surface (28) of the casing (20).

The first portion (121) and the second portion (122) extend in the same direction from the fixed portion (110). Hereinafter, the direction in which each of the first portion (121) and the second portion (122) extends from the fixing portion (110) may be referred to as the extending direction (X).

The first portion (121) and the second portion (122) are spaced apart from each other along the spacing direction (Y). The spacing direction (Y) is the direction perpendicular to the stretch direction (X).

A receiving area (R) is formed between the first part (121) and the second part (122). The accommodation area (R) is an area for accommodating the temperature sensor (90). The first part (121) and the second part (122) are arranged parallel to each other via the accommodation area (R).

In Embodiment 1, the housing portion (120) (each of the first portion (121) and the second portion (122)) is a substantially plate-shaped member having a thickness of 1.0 mm or more. This can suppress deformation of the accommodation portion (120) when the temperature sensor (90) is installed in the accommodation area (R).

As shown in FIG. 4, the receiving area (R) includes an opening (R1). The opening (R1) is formed between the leading end (121a) of the first portion (121) in the extending direction (X) and the leading end (122a) of the second portion (122) in the extending direction (X). It is a void that is filled.

The housing area (R) is opened by the opening (R1) at the leading end side in the extending direction (X) of each of the first portion (121) and the second portion (122).

As shown in FIGS. 3 and 5, the holding member (100) is provided on a curved portion (28a) of the outer surface (28) of the casing (20). The housing portion (120) (the first portion (121) and the second portion (122)) of the holding member (100) faces the curved surface portion (28a). The curved portion (28a) curves downward in the extension direction (X).

In Embodiment 1, the holding member (100) and the suction pipe (12) are spaced apart from each other on the outer surface (28) of the upper portion (22) of the casing (20). Specifically, on the outer surface (28) of the upper portion (22) of the casing (20), the holding member (100) is arranged on the extension direction (X) side, whereas the suction pipe (12) is arranged on the extension direction (X) side. (X) is placed on the opposite side. As a result, the holding member (100) is installed at a location spaced apart from the suction pipe (12). According to this, the temperature sensor (90) installed in the housing area (R) of the holding member (100) is prevented from being affected by the suction pipe (12). ) can be suppressed from deteriorating in temperature detection accuracy. The effect of the suction pipe (12) is that the temperature of the casing (20) is lower in the vicinity of the suction pipe (12) than in other places, and the error in the measurement value of the temperature sensor (90) increases. show.

The holding member (100) further includes a pressing member (130). The pressing member (130) has an insertion portion (131) and a sensor cover portion (132). The inserting portion (131) has a flat plate-like shape, is inserted into a mounting portion (112) formed in the fixing portion (110), and is fixed to the fixing portion (110) by, for example, caulking. there is The sensor cover portion (132) is a curved plate-like portion formed continuously with the insertion portion (131). The sensor cover (132) is configured to cover the outer peripheral surface of the temperature sensor (90). The sensor cover (132) is preferably curved in an arc along the outer peripheral surface of the temperature sensor (90). The sensor cover (132) is elastically deformed.

A receiving area (R) is formed between the first part (121) and the second part (122) and between the sensor cover (132) and the outer surface (28) of the casing (20). be.

As shown in FIGS. 3-5, when the temperature sensor (90) is placed in the containment area (R), the temperature sensor (90) is positioned between the sensor cover (132) and the outer surface (28) of the casing (20). ). At this time, the sensor cover (132) is elastically deformed toward the temperature sensor (90), thereby pressing the temperature sensor (90) against the outer surface (28) of the casing (20) by elastic force. As a result, the state in which the temperature sensor (90) is accommodated in the accommodation area (R) can be maintained.

When the temperature sensor (90) is placed in the housing area (R), the temperature sensor (90) is surrounded from both sides in the spacing direction (Y) by the first portion (121) and the second portion (122). state. This prevents the temperature sensor (90) from moving along the interval direction (Y). As a result, the state in which the temperature sensor (90) is accommodated in the accommodation area (R) can be maintained.

-Effects of Embodiment 1-
As described above with reference to FIGS. 1 to 5, the housing portion (120) has a shape extending from the fixing portion (110) while being separated from the outer surface (28) of the casing (20). On the outer surface (28) of (20) there is formed a receiving area (R) for receiving a temperature sensor (90). As a result, since the housing portion (120) is spaced from the outer surface (28) of the casing (20), the temperature sensor (90) housed in the housing area (R) is not affected by the outer surface (28) of the casing (20). ) can be brought into contact with the housing (120) at a location spaced apart from the housing (120). This restricts the temperature sensor (90) from moving out of the housing area (R), so that the temperature sensor (90) can be held within the housing area (R).

Also, the accommodation portion (120) forming the accommodation area (R) is separated from the outer surface (28) of the casing (20). As a result, it is possible to prevent the paint from accumulating in the housing area (R) when the outer surface (28) of the casing (20) is painted, and to prevent the paint from becoming thick in the housing area (R). According to this, when the temperature sensor (90) is installed in the accommodation area (R), the temperature sensor (90) is effectively brought into contact with the outer surface (28) of the casing (20). As a result, it is possible to prevent the temperature sensor (90) from lowering the accuracy of detecting the temperature of the casing (20).

In addition, the housing portion (120) includes a first portion (121) and a second portion (122) each extending in the same direction (stretching direction (X)) from the fixed portion (110), and the first portion (121) and the second portion (122) a receiving area (R) is formed. Thereby, when installing the temperature sensor (90) in the accommodation area (R) between the first part (121) and the second part (122), the temperature sensor (90) It is stopped (positioned) by contacting one of the second portions (122). Furthermore, after the temperature sensor (90) is abutted and stopped, contacting the other of the first portion (121) and the second portion (122) causes the first portion (121) and the second portion (122) to It is suppressed to come off from between (removal prevention). As a result, the temperature sensor (90) can be easily installed in the accommodation area (R) between the first portion (121) and the second portion (122).

In addition, the accommodation area (R) is opened by having an opening (R1) on the tip side of the extension direction (X) of each of the first portion (121) and the second portion (122). As a result, the temperature sensor (90) can be easily introduced into the accommodation area (R) from the opening (R1).

The housing portion (120) faces the curved surface portion (28a) of the outer surface (28) of the casing (20). As a result, even when the fixed portion (110) and the accommodating portion (120) have a flat shape formed on the same plane, the curved portion (28a) can be used to ) can be spaced from the outer surface (28) of the casing (20).

A part of the sheet metal is used as the fixing part (110), the other part is used as the housing part (120), and a part of the housing part (120) is cut out to form the housing area (R). Even in such a case, the housing portion (120) can be bent to the outer surface (20) of the casing (20) using the curved surface portion (28a) of the outer surface (28) of the casing (20) without bending a single sheet metal. 28). This simplifies the shape of the holding member (100). In addition, since the shape of the holding member (100) can be simplified, the material cost of the holding member (100) can be reduced, and the number of processing steps for the holding member (100) can be reduced.

In addition, the curved portion (28a) facing the accommodating portion (120) is inclined downward with respect to the extension direction (X). As a result, when painting the outer surface (28) of the casing (20), excess paint can flow along the curved surface portion (28a) of the casing (20) so as not to accumulate in the housing area (R) ( See arrow W in FIG. 5).

<<Embodiment 2>>
A holding member (100) according to Embodiment 2 of the present invention will be described with reference to FIG. In Embodiment 1, the holding member (100) is provided on the curved portion (28a) of the outer surface (28) of the casing (20). In contrast, the second embodiment differs from the first embodiment in that the holding member (100) is provided on the inclined surface (28b) of the outer surface (28) of the casing (20). FIG. 6 is a side view showing the holding member (100) of Embodiment 2. FIG.

As shown in FIG. 6, with the fixed portion (110) of the holding member (100) fixed to the outer surface (28) of the casing (20), the housing portion (120) faces the inclined portion (28b).

The accommodation portion (120) of the holding member (100) has a shape extending along the extension direction (X). On the other hand, the sloped portion (28b) is not parallel to the extending direction (X), but is inclined.

The accommodation portion (120) extending in the extension direction (X) is arranged to face the inclined portion (28b). As a result, the accommodation portion (120) is separated from the slope portion (28b). As a result, the temperature sensor (90) can be easily held by sandwiching the temperature sensor (90) between the first portion (121) and the second portion (122) that constitute the housing portion (120).

Also, the sloped portion (28b) is inclined downward with respect to the stretching direction (X). This allows excess paint to flow along the sloped portion (28b) when painting the outer surface (28) of the casing (20).

<<Embodiment 3>>
A holding member (100A) according to Embodiment 3 of the present invention will be described with reference to FIG. The holding member (100A) is a first modification of the holding member (100) shown in FIGS. FIG. 7 is a side view showing the holding member (100A) of Embodiment 3. FIG.

As shown in FIG. 7, the holding member (100A) is provided on a planar portion (28c) of the outer surface (28) of the casing (20). In the holding member (100A), the accommodating portion (120) has a bent or curved shape with respect to the fixed portion (110). As a result, the accommodation portion (120) is separated from the plane portion (28c). That is, when the holding member (100A) is provided on the planar portion (28c), the accommodating portion (120) and the planar portion (28c) are separated by bending or curving the accommodating portion (120) with respect to the fixing portion (110). ) to form a space (S). As a result, the temperature sensor (90) can be easily held by sandwiching the temperature sensor (90) between the first portion (121) and the second portion (122) that constitute the housing portion (120).

<<Embodiment 4>>
A holding member (100B) according to Embodiment 4 of the present invention will be described with reference to FIG. The holding member (100B) is a second modification of the holding member (100) shown in FIGS. FIG. 8 is a side view showing the holding member (100B) of Embodiment 4. FIG.

As shown in FIG. 8, in the holding member (100B), the accommodation portion (120) further includes a third portion (123). The third part (123) is located on the opposite side of the fixing part (110) across the accommodation area (R). The third portion (123) connects the ends (121a) and (122a) of the first portion (121) and the second portion (122) in the extending direction (X). The opening (R1) shown in FIG. 4 is closed by the third portion (123). By providing the third part (123) between each of the first part (121) and the second part (122), the temperature sensor ( 90) can be effectively suppressed from moving in the extension direction (X) and separating from the housing area (R).

The holding member (100B) of Example 4 may be provided on the curved surface portion (28a) of the outer surface (28) of the casing (20), as shown in FIG.

The holding member (100B) of Example 4 may be provided on the sloped portion (28b) of the outer surface (28) of the casing (20), as shown in FIG.

As shown in FIG. 7, the holding member (100B) of Example 4 bends or curves the housing portion (120) with respect to the fixing portion (110), thereby bending the outer surface (28) of the casing (20). may be provided on the flat portion (28c) of the

Although the embodiments and modifications have been described above, it will be understood that various changes in form and detail can be made without departing from the spirit and scope of the claims (e.g., (1) ~(4)). In addition, the embodiments and modifications described above may be appropriately combined or replaced as long as the functions of the object of the present disclosure are not impaired.

(1) Hereinafter, the holding member (100) (see FIGS. 5 and 6), the holding member (100A) (see FIG. 7), and the holding member (100B) (see FIG. 8) are collectively referred to as holding Sometimes referred to as a member.

The place where the holding member is installed on the outer surface (28) of the casing (20) is not particularly limited. The retaining member may, for example, be placed on the outer surface (28) of the body (21) of the casing (20) or on the outer surface (28) of the upper part (22) of the casing (20). Alternatively, it may be located on the outer surface (28) of the bottom (23) of the casing (20).

(2) In the holding member, the pressing member (130) is a separate member from the fixing portion (110). However, the invention is not so limited. The pressing member (130) may be formed integrally with the fixing portion (110). An example of a configuration in which the pressing member (130) and the fixing portion (110) are integrally formed will be described below.

Since the pressing member (130) and the fixing part (110) are integrally formed, the attachment part (112) and the insertion part (131) are not required in the holding member. In this case, the pressing member (130) consists of a sensor cover (132). The sensor cover (132) is integrally formed with the fixed part (110). The sensor cover (132) has a shape that extends continuously from the fixed part (110), and elastically deforms to press the temperature sensor (90) against the outer surface (28) of the casing (20). By integrally forming the pressing member (130) and the fixing portion (110) as described above, the number of parts of the holding member can be reduced.

(3) An example of the installation location of the holding member (100) will be described with reference to FIG. FIG. 9 is a plan view showing an example of the installation location of the holding member (100).

As shown in FIG. 9, the compressor (10) further includes a power supply section (140). The power supply (140) supplies power to the temperature sensor (90) to operate the temperature sensor (90). The power supply (140) is installed outside the casing (20). The power supply (140) and the temperature sensor (90) are electrically connected by wiring (150).

As shown in FIG. 9, the outer surface (28) of the casing (20) includes an area (28d) closer to the power supply section. The power supply section-side area (28d) is an area of the outer surface (28) of the casing (20) located near the power supply section (140). In the present embodiment, the power source section-side region (28d) is formed on the outer surface (28) of the upper portion (22) of the casing (20), and is located near the power source section (140) in the plan view of the casing (20) shown in FIG. ). The holding member (100) is installed in the power supply unit side area (28d).

The effects of placing the holding member (100) in the region (28d) close to the power supply unit will be described below. When the compressor (10) is mounted on a product, the space above the compressor (10) is filled with electrical components, pipes, etc., and the compressor (10) is covered with a soundproof sheet. It becomes difficult to secure a working space for installing the sensor (90) and routing the wiring (150). However, as shown in FIG. 9, when the holding member (100) is installed in the area (28d) close to the power supply section (28d), the operator reaches out from the power supply section (140) side to perform the work. can carry out the work of installing the temperature sensor (90) and the work of routing the wiring (150) in a place close to him/herself. As a result, the difficulty of installing the temperature sensor (90) in the accommodation area (R) and of routing the wiring (150) can be alleviated.

The holding member (100A) (see FIG. 7), the holding member (100B) (see FIG. 8), and the holding member integrally forming the pressing member (130) and the fixing portion (110) (see (2) above) ) may also be installed in the area near the power source (28d).

(4) An example of the position of the pressing member (130) with respect to the housing area (R) will be described with reference to FIG. FIG. 10 is a plan view showing an example of the position of the pressing member (130) with respect to the accommodation area (R).

In FIG. 10, the position (130Y) represented by the dashed line represents the position of the central portion of the pressing member (130) in the spacing direction (Y). In FIG. 10, the position (RY) represented by the dashed line represents the position of the central portion of the accommodation area (R) in the spacing direction (Y).

As shown in FIG. 10, the temperature sensor (90) has a sensing portion (91). A sensing portion (91) indicates a portion of the casing (20) that senses heat. The sensing part (91) is located at a position displaced in the spacing direction (Y) from the center of the housing of the temperature sensor (90). For convenience of drawing, in FIG. 10, the sensing portion (91) is shown on the side opposite to the outer surface (28) of the casing (20). However, actually, the sensing part (91) is installed on the outer surface (28) side of the casing (20) and faces the outer surface (28) of the casing (20).

As shown in FIG. 10, in the spacing direction (Y), the central position (130Y) of the pressing member (130) is separated from the central position (RY) of the housing area (R). Specifically, in the spacing direction (Y), the position (130Y) of the central portion of the pressing member (130) is relative to the position (RY) of the central portion of the accommodation area (R), and the temperature sensor (90) senses It is separated toward the part (91) side. Thereby, the sensing part (91) of the temperature sensor (90) can be effectively brought into contact with the outer surface (28) of the casing (20) by the pressing member (130). As a result, it is possible to effectively improve the detection accuracy of the temperature of the casing (20) by the temperature sensor (90).

The holding member (100A) (see FIG. 7), the holding member (100B) (see FIG. 8), and the holding member integrally forming the pressing member (130) and the fixing portion (110) (see (2) above) ), the central position (130Y) of the pressing member (130) may be separated from the central position (RY) of the accommodation area (R) in the spacing direction (Y).

INDUSTRIAL APPLICABILITY As described above, the present disclosure is useful for compressors.

10 Compressor
20 Casing
28 Exterior
28a curved part (part that is curved)
28b Slope part (part that is an inclined surface)
40 compression mechanism
90 temperature sensor
100 holding member
110 Fixed part
120 containment
121 Part 1
121a Tip
122 second part
122a Tip
123 Part 3
130 pressing member
R containment area
X drawing direction

Claims (9)

a fixing part (110) fixed to the casing (20) in contact with the outer surface (28) of the casing (20) housing the compression mechanism (40);
A temperature sensor having a shape extending from the fixing part (110) while being separated from the outer surface (28) of the casing (20) to form a space (S), and detecting the temperature of the casing (20). a housing portion (120) forming a housing region (R) housing (90);
with a retaining member (100) containing,
The housing portion (120) of the holding member (100) includes a first portion (121) and a second portion (122) each extending from the fixing portion (110),
The accommodation area (R) is formed between the first part (121) and the second part (122). compressor. Claim 1 in
A compressor in which the accommodation area (R) is opened at the tip side of each of the first portion (121) and the second portion (122) in the extending direction (X). Claim 1 in
The accommodating portion (120) of the holding member (100) is located on the opposite side of the fixing portion (110) across the accommodating area (R), and the first portion (121) and the second portion (121). 122), further comprising a third portion (123) connecting the extremities (121a) (122a) in the direction of extension (X) of each of them. Claims 1 to 3 in any one of
A power supply (140) for supplying power to the temperature sensor (90) is installed outside the casing (20),
The outer surface (28) of the casing (20) includes a power supply unit-side region (28d) located close to the power supply unit (140),
A compressor in which the holding member (100) is installed in the area (28d) close to the power supply unit. Claims 1 to 4 in any one of
The accommodation portion (120) of the holding member (100) is curved in a portion (28a) of the outer surface (28) of the casing (20). Compressor facing portion (28b), which is a sloped surface that slopes downward. Claim 5 in
Each of the curved surface portion (28a) and the inclined surface portion (28b) is a compressor inclined downward in the vertical direction with respect to the extending direction (X). Claims 1 to 6 in any one of
The holding member (100) further includes a pressing member (130) that presses the temperature sensor (90) arranged in the accommodation area (R) against the outer surface (28) of the casing (20). Claim 7 in
The pressing member (130) is a compressor integrally formed with the fixed part (110). Claim 7 or Claim 8 in
In the spacing direction (Y) perpendicular to the extending direction (X) of the accommodating portion (120), the position (130Y) of the central portion of the pressing member (130) is the position of the central portion of the accommodating area (R). Compressor away from position (RY).

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