Compressor

Abstract

A compressor (C) comprises a case (11), a compression mechanism (12) housed in the case (11), a motor (13) housed in the case (11) and configured to be capable of driving the compression mechanism (12), a terminal (14) provided in the upper part of the case (11) and configured to be allow connection of a lead wire for supplying electric power to the motor (12), a terminal cover (2) enclosing the terminal (14), and a sealing member (3) disposed between the terminal cover (2) and the upper part of the case (11). The terminal cover (2) has an opening part (21a) that opens in a direction perpendicular to the center axis of the case (11), and the lead wire can be drawn from the interior of the terminal cover (2) through the opening part (21a) to the outside of the terminal cover. The sealing member (3) has a sheet-form sealing member body (31) having a sealed part (31a) held between the edge of the terminal cover (2) and the upper part of the case (11), which face each other, and a protrusion (32) that is formed so as to protrude from the sealing member body (31) and that that occupies at least part of a space (S) of the opening part (21a) in projection onto a plane parallel to the central axis of the case (11).

Description

[Technical Field]

[0001] An embodiment of the present invention is On the spot Regarding. [Background technology]

[0002] In compressors used in freezers, refrigerators, water heaters, air conditioners, etc., the upper part of the case (also called the "upper case," hereafter referred to as the "upper case") that houses the compression mechanism and the motor that drives it is provided with terminals for supplying power to the motor, and a cover member (hereafter referred to as the "terminal cover") that surrounds and protects the terminals and their installation base is attached. The terminal cover is placed on the upper part of the case with a sealing member sandwiched between them.

[0003] Patent document 1 discloses a compressor that has a sealing member that is placed between the top of the case and a protective cover for the terminal portion and is fastened to the top of the case together with the protective cover, and this sealing member is formed in the shape of a flat sheet. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 08-049679 Summary of the Invention [Problem to be solved by the invention]

[0005] The compressor having the above configuration is generally installed vertically with the central axis of the case vertical, i.e., with the compression mechanism and motor stacked one on top of the other inside the case. With the compressor in this position, the lead wires connected to the terminals are drawn horizontally from the inside to the outside of the terminal cover through openings in the side walls of the terminal cover.

[0006] If the opening of the terminal cover is large enough to allow movement of the lead wires, they may bend due to their own weight or deform due to external forces, causing them to move within the opening and exerting a moment on the terminals of the lead wires connected to the terminal section. This can reduce the adhesion between the terminal section on the top of the case and the terminals of the lead wires, causing poor contact between the two components and potentially compromising the stability of the power supply to the motor.

[0007] Because the sealing member is in the form of a flat sheet, a relatively wide gap is generally left at the opening of the terminal cover to allow the lead wires to move up and down.

[0008] Therefore, the present invention aims to suppress the movement of the lead wire and the resulting moment acting on the terminal, maintain adhesion between the terminal portion on the top of the case and the terminal of the lead wire, and achieve a more stable power supply to the motor. [Means for solving the problem]

[0009] To solve the above problems 、 A compressor according to an embodiment of the present invention comprises a case, a compression mechanism housed in the case, a motor housed in the case and configured to drive the compression mechanism, terminals provided on the top of the case and configured to be connectable to lead wires for supplying power to the motor, a terminal cover surrounding the terminals, and a seal member disposed between the terminal cover and the top of the case. The terminal cover has an opening that opens in a direction perpendicular to the central axis of the case, and the lead wires can be drawn from inside the terminal cover to outside the terminal cover through the opening. The seal member has a sealing portion that is sandwiched between the opposing edges of the terminal cover and the top of the case. Contains elasticity and a convex portion formed to protrude from the seal member body and occupy at least a part of the space of the opening when projected onto a plane parallel to the central axis of the case. The upper part of the case is convex upward relative to the central axis of the case, and the sealing member is disposed between the terminal cover and the upper part of the case with the convex part in contact with the lead wire, and a gap is formed between the sealing member main body and the upper part of the case to allow downward deformation of the sealing member main body around the sealing part. do.

[0011] In the compressor according to the embodiment of the present invention, it is preferable that the seal member has the seal member main body and the convex portion integrally formed.

[0012] In the compressor according to the embodiment of the present invention, it is preferable that the seal member is made of a rubber material, and that the seal member body and the convex portion are formed by integral molding. [Effects of the Invention]

[0014] According to the present invention, it is possible to suppress the movement of the lead wire and the resulting moment acting on the terminal, maintain adhesion between the terminal portion on the top of the case and the terminal of the lead wire, and contribute to realizing a more stable power supply to the motor.

[0015] In an embodiment of the present invention, the convex portion reduces the gap remaining in the opening of the terminal cover, thereby preventing the lead wires from moving inside the opening of the terminal cover due to bending of the lead wires under their own weight or deformation due to the action of external forces, thereby preventing a moment from acting on the terminals of the lead wires, thereby maintaining good contact between the terminal portion and the terminals of the lead wires.

[0016] moreover By making the sealing member body elastic and positioning the sealing member with the convex portion in contact with the lead wire, and further making the top of the case convex upward, a gap is formed between the sealing member body and the top of the case that allows downward deformation of the sealing member body, thereby supporting the lead wire against bending and deformation, and more effectively suppressing situations in which a moment acts on the terminal of the lead wire.

[0017] others In this embodiment, the sealing member main body and the convex portion are formed integrally, which simplifies the configuration of the sealing member and makes it possible to reduce the labor required to install the sealing member.

[0018] Furthermore, since the seal member body and the convex portion can be managed as a single component, storage and management of the seal member becomes easier.

[0019] In yet another embodiment, the sealing member body and the convex portion are formed by integral molding of rubber material, which promotes improvement in productivity of the sealing member and makes it possible to reduce the manufacturing costs of the sealing member.

[0020] Furthermore, by using a rubber material with appropriate flexibility, it is possible to improve the adhesion between the seal body and the top of the case, and between the seal body and the terminal cover, while also preventing damage to the lead wires due to contact with the terminal cover. This makes it possible to reduce the opening of the terminal cover as much as possible and prevent foreign matter such as water or dust from entering the inside of the terminal cover. [Brief explanation of the drawings]

[0021] [Figure 1] 1 is an elevational view showing a compressor according to an embodiment of the present invention in an installed state. [Figure 2] FIG. 2 is a plan view showing the compressor according to the embodiment as viewed from above. [Figure 3] 3 is a cross-sectional view taken along line xx in FIG. 2, showing the internal configuration of a terminal cover in the compressor according to the embodiment. [Figure 4] 4 is a cross-sectional view taken along line yy in FIG. 3, showing the internal configuration of a terminal cover in the compressor according to the embodiment. [Figure 5] 4 is a cross-sectional view taken along line zz in FIG. 3, showing the internal configuration of a terminal cover in the compressor according to the embodiment. [Figure 6] 1A is a plan view showing the configuration of the sealing member according to the embodiment, FIG. 1B is a front view, and FIG. 1C is a cross-sectional view taken along line a1-a1. [Figure 7] 3 is a cross-sectional view taken along the same line as line xx shown in FIG. 2, illustrating the internal configuration of a terminal cover in a compressor as a comparative example. [Figure 8]1A is a plan view showing the configuration of a sealing member as a comparative example, FIG. 1B is a front view, and FIG. 1C is a cross-sectional view taken along line a2-a2. DETAILED DESCRIPTION OF THE INVENTION

[0022] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

[0023] 1 and 2 show a compressor C according to one embodiment of the present invention (hereinafter simply referred to as "compressor") in a state where it is installed in a refrigeration cycle apparatus. Fig. 1 is an elevation view showing the compressor C as seen from the side, and Fig. 2 is a plan view showing the compressor C as seen from above.

[0024] 3 to 5 show the internal configuration of the terminal cover 2 in the compressor C. FIG. 3 is a cross-sectional view taken along line xx in FIG. 2, FIG. 4 is a cross-sectional view taken along line yy in FIG. 3, and FIG. 5 is a cross-sectional view taken along line zz in FIG. 3.

[0025] In this embodiment, the compressor C is a so-called hermetic rotary compressor. The compressor C is applied to a refrigeration cycle device, and sucks in and compresses low-temperature, low-pressure refrigerant gas that has left an evaporator, converts the refrigerant gas into high-temperature, high-pressure superheated vapor, and discharges it. The refrigerant discharged by the compressor C is supplied to a condenser. In a refrigeration cycle device, the evaporator constitutes a heat receiving source, and the condenser constitutes a heat dissipation source. The evaporator, compressor C, and condenser are connected in this order to the refrigerant flow by refrigerant piping. An expansion valve is installed between the condenser and the evaporator. Examples of refrigeration cycle devices to which the compressor C can be applied include freezers, refrigerators, hot water heaters, and air conditioners.

[0026] The compressor C includes a compressor main body 1 and an accumulator 5. In this embodiment, the compressor main body 1 and the accumulator 5 are integrated, and the accumulator 5 is configured as an element or part of the compressor C. However, the accumulator 5 can also be configured as a refrigeration cycle element separate from the compressor C.

[0027] The compressor body 1 is connected to the accumulator 5 by a refrigerant suction pipe 61, and sucks the refrigerant gas that has left the evaporator through the accumulator 5.

[0028] The accumulator 5 is also called a suction muffler or gas-liquid separator, and when refrigerant gas leaving the evaporator is mixed with refrigerant in a liquid or droplet state in addition to vapor, it separates the vapor from the liquid or droplets and discharges only the vapor, which is then sucked into the compressor body 1. The accumulator 5 includes an inlet pipe 51 and an outlet pipe 52, and is supplied with refrigerant gas via the inlet pipe 51. In this embodiment, the outlet pipe 52 also serves as the refrigerant suction pipe 61 of the compressor body 1.

[0029] In this embodiment, the compressor body 1 includes a case 11, a compression mechanism 12, and a motor 13. The compression mechanism 12 and the motor 13 are both housed airtight in the case 11. For convenience of illustration, Fig. 1 shows the outlines of the compression mechanism 12 and the motor 13 schematically by two-dot chain lines.

[0030] The case 11 includes a case main body 11a, a case upper part 11b, and a case bottom part 11c. The case main body 11a is a hollow cylinder that penetrates vertically and has an internal space for accommodating the compression mechanism part 12 and the motor 13. The case upper part 11b is joined to the upper end of the case main body 11a and airtightly closes the opening at the upper end of the case main body 11a. The case bottom part 11c is joined to the lower end of the case main body 11a and airtightly closes the opening at the lower end of the case main body 11a.

[0031] In this embodiment, the case top 11b and the case bottom 11c are both formed of dish-shaped end plates and are joined to the case body 11a by an appropriate method such as welding. The compressor C is installed vertically so that the central axis Ax1 of the case 11 is vertical when installed, that is, so that the compression mechanism 12 and the motor 13, which will be described below, are stacked one on top of the other inside the case 11.

[0032] The compression mechanism 12 is housed inside the case 11 in the lower half of the case body 11a.

[0033] The motor 13 is housed inside the case 11 in the upper half of the case body 11a.

[0034] The motor 13 constitutes the drive source of the compression mechanism 12 and includes a stator and a rotor. The stator is cylindrical and fixed to the case body 11a, and the rotor is disposed on the inner diameter side of the stator and rotatably supported by the case body 11a. The rotor of the motor 13 is connected to the compression mechanism 12 via a crankshaft. When an electromagnetic coil formed in the stator is energized, an electromagnetic attraction force acts on the rotor, causing the rotor to rotate. The motor 13 transmits the rotational driving force generated in the rotor to the compression mechanism 12 via the crankshaft, thereby driving the compression mechanism 12. In this embodiment, the motor 13 is a three-phase induction motor.

[0035] Here, the compression mechanism 12 includes a cylinder and a rolling piston. The cylinder is cylindrical and fixed to the case body 11a coaxially with the rotor and crankshaft of the motor 13. The rolling piston is disposed on the inner diameter side of the cylinder and is rotatably supported eccentrically with respect to the cylinder by an eccentric portion provided on the crankshaft. The compression mechanism 12 draws in and compresses refrigerant as the rolling piston rotates inside the cylinder. In this embodiment, the cylinder has a groove extending radially outward from the inner diameter side of the cylinder. A partition plate (also called a "vane") is housed in this groove. The partition plate slides against the outer circumferential surface of the rolling piston, dividing the space between the cylinder and the rolling piston into a suction chamber and a compression chamber. The compressed refrigerant is discharged into the space inside the case 11 and further to the condenser via a refrigerant discharge pipe 62.

[0036] Furthermore, lubricating oil is sealed in the lower half of the case body 11a and the case bottom 11c, and the compression mechanism 12 is immersed in this lubricating oil.

[0037] In addition to the above, the compressor body 1 further includes a terminal portion 14, and the compressor C includes a terminal cover 2 and a seal member 3 as elements attached to the compressor body 1.

[0038] 3, terminal portion 14 is an intermediate element that connects a lead wire (also called a "power line," hereinafter referred to as a "first lead wire") L outside case 11 extending from a power source (e.g., a commercial AC power source) or a power converter such as an inverter for motor 13 to a lead wire (also called an "output wire," hereinafter referred to as a "second lead wire") (not shown) inside case 11 extending from the coil winding of the stator, and is installed in case upper portion 11b. In this embodiment, three terminal portions 14 are provided, corresponding to the number of coil phases of motor 13.

[0039] In this embodiment, the terminal portion 14 is composed of a terminal pin 141 and a tab terminal 142. An installation base 15 is fitted into an insertion opening formed in the case upper portion 11b, and the terminal portion 14 is attached to the case upper portion 11b by this installation base 15. The installation base 15 ensures an insulating distance between the three terminal portions 14.

[0040] Specifically, the terminal pin 141 is fixed to the installation base 15 in a state where it penetrates the front and back of the installation base 15. The tab terminal 142 has a flat plate shape and is fixed to the terminal pin 141 by welding or the like.

[0041] 4, when the tab terminals 142 are fixed to the terminal pins 141, their surfaces face in different directions, and a plane including the surface of one of the tab terminals 142 constituting each of the three terminal portions 14 divides into two an angle formed by planes including the surfaces of the other two tab terminals 142. In this embodiment, the terminal pins 141 constituting each of the three terminal portions 14 are in a mutual relationship in which they are located at the vertices of an equilateral triangle, and planes including the surfaces of two of the three tab terminals 142 intersect with each other to form an acute angle, and a plane including the surface of the other tab terminal 142 is in a positional relationship that bisects this acute angle.

[0042] A faston terminal F is attached to the tip of the first lead wire L, and by attaching this faston terminal F to the tab terminal 142, the first lead wire L is connected to the second lead wire inside the case 11 via the terminal portion 14, enabling power to be supplied from the power source to the motor 13. In this embodiment, when the first lead wire L is connected to the terminal portion 14, the length direction of the terminal pin 141 and the length direction of the first lead wire L are perpendicular to each other, and the first lead wire L is drawn from the terminal portion 14 in a direction perpendicular to the central axis Ax1 of the case 11, i.e., in the horizontal direction.

[0043] The terminal cover 2 is attached to the upper case portion 11b and surrounds the terminal portion 14 and the installation base 15, protecting them from contact with foreign matter such as water or dust. The terminal cover 2 includes a cover main body 21 and an extension portion 22. In this embodiment, the cover main body 21 and the extension portion 22 are integrally formed from an appropriate material such as resin, and the terminal cover 2 is attached to the upper case portion 11b by being restrained by a fastening band 16 that is hung around the cover main body 21. The fastening band 16 is fixed to the upper case portion 11b via a collar-shaped guide member 17 that is provided to surround half of the cover main body 21.

[0044] The cover body 21 has a cylindrical shape with a lid and defines a space therein for accommodating the terminal portion 14. The cover body 21 further has an opening 21a in its side wall. The opening 21a opens in a direction perpendicular to the central axis Ax1 of the case 11 when the terminal cover 2 is attached to the case upper portion 11b.

[0045] The extension portion 22 is connected to the opening 21a and shields the space inside the terminal cover 2 from the outside when viewed from outside the terminal cover 2 in a direction perpendicular to the central axis Ax1 of the case 11. In this embodiment, the extension portion 22 forms a roof shape extending from the opening 21a, has a downward slope toward the outside of the cover body 21, and extends from the opening 21a so as to block the line of sight toward the inside of the terminal cover 2 in a direction perpendicular to the central axis Ax1 of the case 11. The first lead wire L connected to the terminal portion 14 is drawn from inside the terminal cover 2 to the outside of the terminal cover 2 through the opening 21a and the extension portion 22.

[0046] The seal member 3 is disposed between the terminal cover 2 and the upper part 11b of the case.

[0047] Fig. 6 shows the configuration of the seal member 3 provided in the compressor C. Fig. 6(a) is a plan view of the seal member 3, Fig. 6(b) is a front view of the seal member 3, and Fig. 6(c) is a cross-sectional view of the seal member 3 taken along line a1-a1 shown in Fig. 6(a).

[0048] The seal member 3 includes a seal member main body 31 and a convex portion 32. In this embodiment, the seal member main body 31 and the convex portion 32 are integrally formed, and the seal member 3 is formed as a single member or part. Specifically, the entire seal member 3, including the convex portion 32, is formed from a resin material, and the seal member main body 31 and the convex portion 32 are integrally formed by molding or the like. Examples of materials that can be used for the seal member 3 include various natural or synthetic resin materials, such as rubber materials. Furthermore, it is preferable that not only the seal member main body 31 but also the convex portion 32 of the seal member 3 have appropriate elasticity.

[0049] The seal member main body 31 is generally in the form of a flat sheet, and includes a sealing portion 31a and a tongue-shaped portion 31b.

[0050] When the terminal cover 2 is attached to the case upper part 11b, the sealing part 31a is sandwiched between the opposing edges of the terminal cover 2 and the case upper part 11b, providing a liquid-tight seal at the joint surfaces of these parts. In this embodiment, the sealing part 31a is located between the edge of the cover main body 21 and the opposing case upper part 11b. The seal member main body 31 has an insertion opening h formed so that the installation base 15 of the terminal part 14 can be fitted therein, and the sealing part 31a surrounds the insertion opening h all around.

[0051] The tongue-shaped portion 31b is formed as an extension portion that extends radially outward from the sealing portion 31a with respect to the center line Ax2 of the insertion opening h, and comes into contact with the edge of the extension portion 22 of the terminal cover 2 when the terminal cover 2 is attached to the case upper portion 11b, as shown in Fig. 3. In this embodiment, the tongue-shaped portion 31b prevents foreign matter from entering the inside of the terminal cover 2 through the opening 21a by blocking the extension portion 22 from below, and also holds the convex portion 32, which will be described next, and contributes to determining its position.

[0052] The convex portion 32 is formed to protrude from the tongue portion 31b of the sealing member main body 31 in a direction parallel to the central axis Ax2 of the insertion opening h, and occupies a part of the space S of the opening 21a when projected onto a plane parallel to the central axis Ax1 of the case 11. In other words, at least a part of the projection of the convex portion 32 onto the plane parallel to the central axis Ax1 of the case 11 overlaps with the projection of the space S of the opening 21a.

[0053] Here, "occupying a portion of the space S of the opening 21a" does not mean that the convex portion 32 occupies the entire space S of the opening 21a. In other words, it means that at least a gap is left for the first lead wire L to pass through when the first lead wire L is drawn from inside the terminal cover 2 to outside the terminal cover 2. In this embodiment, as shown in FIG. 3 , the convex portion 32 is entirely located within the space of the extension portion 22 continuing from the opening 21a, and the entire projection of the convex portion 32 onto a plane parallel to the central axis Ax1 of the case 11 overlaps with the projection of the space S of the opening 21a. Furthermore, the entire projection of the convex portion 32 onto a plane perpendicular to the central axis Ax1 of the case 11 overlaps with the projection of the space S of the extension portion 22.

[0054] In this embodiment, "projection onto a plane parallel to the central axis Ax1 of the case 11" refers to a projection onto a plane that is parallel to the central axis Ax1 of the case 11 and on which the projected area of ​​the convex portion 32 is largest, which generally corresponds to a plane perpendicular to the first lead wire L drawn from the terminal portion 14 near the center of the opening 21a in the plan view shown in Figure 4.

[0055] 3, when the terminal cover 2 is attached to the case upper portion 11b, the upper end of the convex portion 32 comes into contact with the first lead wire L. In other words, the first lead wire L is sandwiched from above and below between the extending portion 22 and the convex portion 32, is supported upward from below by the convex portion 32, and is elastically pressed against the extending portion 22.

[0056] Here, a small gap is left between the tongue-shaped portion 31b of the seal member main body 31 and the case upper portion 11b, and the seal member main body 31 can bend or deform downward around the sealing portion 31a when a force is applied to the tongue-shaped portion 31b or the convex portion 32. For example, when the first lead wire L is pressed downward, the seal member main body 31 can deform to follow the first lead wire L. Figure 3 shows the outline of the deformed seal member main body 31 using dotted lines.

[0057] In this embodiment, the portion of case top 11b around terminal 14 is formed into a flat surface, and the surrounding portion is formed into a convex curved surface. Furthermore, seal member main body 31 is configured so that sealing portion 31a meets or straddles the boundary between the flat surface and the convex curved surface of case top 11b. Due to this configuration, in a normal state where no load is applied to first lead wire L, or even if a load is applied, it is not significant, tongue-shaped portion 31b has its end floating above case top 11b. When first lead wire L is pressed downward, tongue-shaped portion 31b moves downward together with convex portion 32, following first lead wire L.

[0058] This allows the edge of the end cover 2 to firmly press the sealing portion 31a of the sealing member main body 31 against the upper case 11b, particularly the area around the terminal portion 14 which has a flat surface, ensuring good sealing properties, while the tongue-shaped portion 31b extending outward from the sealing portion 31a provides a moderate elastic force, ensuring appropriate compliance with the first lead wire L.

[0059] Furthermore, even if the sealing member main body 31 is thin and the required elastic force cannot be obtained by the sealing member main body 31, it is possible to achieve appropriate conformability to the first lead wire L by adjusting the elastic force of the convex portion 32.

[0060] The compressor C and the seal member 3 according to this embodiment have the above-described configuration, and the effects obtained by this embodiment will be described below.

[0061] First, the seal member 3 is provided with a sheet-like seal member main body 31 and a convex portion 32 formed to protrude from the seal member main body 31, and is configured so that the convex portion 32 occupies at least a portion of the space S of the opening 21a of the terminal cover 2 when projected onto a plane parallel to the central axis Ax1 of the case 11. This reduces the gap remaining in the opening 21a of the terminal cover 2 and prevents the first lead wire L from moving within the opening 21a of the terminal cover 2, for example, from bending due to its own weight or from being deformed by the action of an external force, which would cause the first lead wire L to sag from the connection portion with the terminal portion 14, which is the position of the faston terminal F in this embodiment, and makes it possible to prevent a moment from acting on the faston terminal F.

[0062] This makes it possible to maintain good contact between the terminal portion 14 and the first lead wire L, in this embodiment, particularly between the tab terminal 142 and the Faston terminal F, thereby contributing to realizing a more stable power supply to the motor 13.

[0063] Specifically, movement of the first lead wire L causes a downward moment to act on the Faston terminal F, which can cause the joint between the Faston terminal F and the tab terminal 142 to loosen, reducing the contact area between the two and potentially leading to an insufficient contact area. However, by supporting the first lead wire L with the convex portion 32 and suppressing its movement, the action of the moment on the Faston terminal F can be suppressed, making it possible to avoid an insufficient contact area due to loosening of the joint.

[0064] Furthermore, as a result of the reduction in the gap remaining in the opening 21a of the terminal cover 2, in addition to the first lead wire L being bent or deformed, it is possible to avoid a situation in which the first lead wire L is fluctuated due to vibrations transmitted from the motor 13 or other peripheral devices housed in the case 11, thereby preventing excessive load from being placed on the Faston terminal F.

[0065] FIG. 7 is a cross-sectional view showing the internal configuration of the terminal cover 2 in a compressor C' as a comparative example, taken along the same cross-sectional line as FIG. 3 (line xx in FIG. 2).

[0066] Fig. 8 shows the configuration of a seal member 3' provided in a compressor C', which is a comparative example. Fig. 8(a) is a plan view of the seal member 3', Fig. 8(b) is a front view of the seal member 3', and Fig. 8(c) is a cross-sectional view of the seal member 3' taken along line a2-a2 shown in Fig. 8(a).

[0067] 7 and 8, elements similar to those in the compressor C according to this embodiment are denoted by the same reference numerals as those shown in FIGS. 3 and 6, and repeated explanations will be omitted.

[0068] In the comparative example, the seal member 3' does not have the convex portion 32, and is formed only from elements corresponding to the seal member main body 31, forming a flat sheet shape overall. As a result, when the terminal cover 2 is attached to the case upper portion 11b, the opening 21a of the terminal cover 2 has enough space to allow movement of the first lead wire L. If the first lead wire L bends due to its own weight or deforms due to external force, causing movement of the first lead wire L, a moment corresponding to this movement acts on the Faston terminal F connected to the tab terminal 142 of the terminal portion 14. This causes loosening of the joint between the tab terminal 142 and the Faston terminal F, reducing the contact area between them, which may result in heat generation due to poor contact or a loss of stability in the power supply to the motor 13.

[0069] According to this embodiment, such a situation can be avoided, and a more stable power supply to the motor 13 can be achieved.

[0070] Secondly, the sealing member main body 31 is made elastic, and the sealing member 3 is positioned with the convex portion 32 in contact with the first lead wire L. Furthermore, the case upper part 11b is made to have an upwardly convex shape, and a gap is formed between the sealing member main body 31 and the case upper part 11b that allows the sealing member main body 31 to deform downward. This makes it possible to elastically support the first lead wire L against its bending and deformation, and more effectively suppress the occurrence of a moment acting on the Faston terminal F.

[0071] Thirdly, by integrally forming the sealing member main body 31 and the convex portion 32, it is possible to simplify the configuration of the sealing member 3 and reduce the labor required to install the sealing member 3.

[0072] Furthermore, since the seal member main body 31 and the convex portion 32 can be managed as a single component, the storage and management of the seal member 3 becomes easy.

[0073] Fourth, by forming the sealing member main body 31 and the convex portion 32 by integral molding of rubber material, it is possible to improve the productivity of the sealing member 3 and reduce the manufacturing costs of the sealing member 3.

[0074] Furthermore, by using a rubber material with appropriate flexibility, it is possible to improve the adhesion between the sealing member main body 31 and the case upper part 11b, and between the sealing member main body 31 and the terminal cover 2, while suppressing damage to the first lead wire L due to contact with the sealing member 3, particularly the convex part 32. This makes it possible to suppress the intrusion of foreign matter such as water or dust into the interior of the terminal cover 2 by minimizing the gap remaining in the opening 21a of the terminal cover 2.

[0075] Furthermore, because the seal member 3, particularly the seal member body 31, is flexible, the convex portion 32 elastically supports the first lead wire L, suppressing movement due to bending or deformation thereof, and also deforming to accommodate deformation of the first lead wire L due to the action of an external force, thereby preventing excessive load from being applied to the first lead wire L. This makes it easier to operate and route the first lead wire L, for example, when installing the compressor C.

[0076] In the above description, the seal member main body 31 and the convex portion 32 are integrally formed from the same material, and the seal member 3 is formed as a single member, but the seal member 3 is not limited to this configuration. The seal member main body 31 and the convex portion 32 can also be formed separately from the same or different materials, or they can be formed separately from the same material, or they can be formed integrally from different materials. For example, the seal member main body 31 can be formed from a flexible resin material such as rubber, while the convex portion 32 can be formed integrally with or separately from the seal member main body 31 from a material harder than the seal member main body 31, such as a hard plastic material.

[0077] Furthermore, in the above description, the terminal cover 2 is configured such that the entire convex portion 32 is disposed within the extending portion 22, but the arrangement of the convex portion 32 is not limited to this, and it is also possible to dispose a portion of the convex portion 32 outside the extending portion 22. Specifically, a portion of the convex portion 32 is disposed within the extending portion 22, while the remaining portion is disposed within the cover body 21 or outside the terminal cover 2. Furthermore, the entire convex portion 32 can also be disposed outside the extending portion 22.

[0078] Although several embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be embodied in various other forms, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. These embodiments and their modifications are included within the scope and spirit of the invention, and are also included in the scope of the invention and its equivalents as defined in the claims. [Explanation of symbols]

[0079] C...compressor, 1...compressor body, 11...case, 11a...case body, 11b...top of case, 11c...bottom of case, 12...compression mechanism, 13...motor, 14...terminal portion, 141...terminal pin, 142...tab terminal, 15...terminal block, 16...fastening band, 2...terminal cover, 21...cover body, 21a...opening, 22...extension, 3...sealing member, 31...sealing member body, 31a...sealing portion, 31b...tongue-shaped portion, 32...convex portion, 5...accumulator, 51...inlet pipe, 61...refrigerant suction pipe, 62...refrigerant discharge pipe, F...Faston terminal, L...first lead wire, S...space at opening.

Claims

1. Case and a compression mechanism housed in the case; a motor accommodated in the case and configured to be capable of driving the compression mechanism; a terminal portion provided on an upper portion of the case and configured to be connectable to a lead wire for supplying power to the motor; a terminal cover that surrounds the terminal portion, the terminal cover having an opening that opens in a direction perpendicular to a central axis of the case, and the lead wires can be drawn out from inside the terminal cover through the opening; a seal member disposed between the terminal cover and the upper portion of the case, The sealing member is a sheet-like elastic seal member body including a sealing portion sandwiched between the edge portion of the terminal cover and the upper portion of the case, the sealing portion being opposed to each other; a convex portion formed to protrude from the seal member body and occupying at least a part of the space of the opening when projected onto a plane parallel to the central axis of the case, The upper portion of the case is convex upward relative to the central axis of the case, the sealing member is disposed between the terminal cover and the upper portion of the case with the convex portion in contact with the lead wire, A compressor, wherein a gap is formed between the seal member body and the upper part of the case, the gap allowing downward deformation of the seal member body around the sealing portion.

2. The compressor according to claim 1 , wherein the seal member has the seal member body and the convex portion integrally formed therewith.

3. 3. The compressor according to claim 2, wherein the seal member is made of a rubber material, and the seal member body and the convex portion are integrally formed by molding.

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