Compressor, in particular for heat pump, with improved electrical connector

Abstract

A compressor with an improved electrical connector, in particular for a heat pump, is provided. An electrical connector for a compressor includes: a connector body made of a synthetic material having a front side and a rear side opposite the front side; an electrical connection seat having a metal first contact terminal in a chamber which is open only on the front side and is sealingly delimited on the rear side of the connector body; a thermal protector seat having a plurality of second contact terminals in a chamber, the chamber being open only at the front side of the connector body and being sealingly bounded at the rear side of the connector body; the mounting seat is used for mounting and clamping the connector body to the compressor; a first sealing edge extending in a closed loop around the electrical connection seat on a front side of the connector body; at least a first cable connected to the first contact terminal and extending through a wall of the connector body at a distance from the front side; and at least a second cable connected to the second contact terminal and extending through the wall of the connector body at a distance from the front side.

Description

Technical Field

[0001] The present invention relates to an improved electrical connector for powering a compressor for compressing a fluid (such as a refrigerant in a heat pump), a compressor provided with the improved electrical connector, and a heat pump. Background Art

[0002] Known electric compressors include a metal housing, a compression path formed in the housing between an inlet opening and an outlet opening, an electric motor disposed in the housing, and a mechanical compression mechanism disposed in the housing along the compression path, the mechanical compression mechanism being operable by the electric motor to draw in a fluid through the inlet opening, compress the drawn-in fluid, and discharge the compressed fluid out of the outlet opening.

[0003] As a compression mechanism, a so-called "rotary" mechanism is known to be used, which for example has a cylindrical compartment, a suction opening, a discharge opening, and a rotor eccentrically positioned relative to the cylindrical compartment, wherein compression of the refrigerant fluid occurs by a volume reduction generated by the eccentric rotation of the rotor. Different from the "rotary" mechanism, a so-called "bi-rotary" compression mechanism consists of two rotors capable of rotating in two opposite directions in order to reduce noise and vibration of the compressor.

[0004] As a compression mechanism, in order to compress a fluid, a so-called "rolling" mechanism is also known to be used, which has two helical parts, one helical part inside the other helical part, wherein one helical part is fixed and the other helical part has a non-rotating planetary motion. With the relative movement of these two helical parts, since the amount of the gap between these two helical parts is very small, these two helical parts will capture and compress a pocket of fluid between the helical parts.

[0005] For example, it is known to use a three-phase electric motor controlled by an inverter. For this purpose, it is known to provide a compressor housing with a set of three pin-shaped metal terminals that project from a substrate towards the outside of the compressor and are connected to the windings of the electric motor inside the housing.

[0006] For the electrical connection of the electric motor, it is known to weld a male Faston connector (shaped like an elongated plate) to each pin-shaped metal terminal, and a corresponding female Faston cable lug of a power cable is inserted into the male Faston connector by coupling (crimping, welding, or connecting in a similar manner). The current implementation of the electrical connection of the electric motor is complex and time-consuming, and not reliable enough. Weak or intermittent electrical contacts may cause sparks and lead to cable melting or fire.

[0007] For the reliable and safe operation of a compressor, especially in heat pumps and in other fluid compression applications, it is known to place a thermal protection device (e.g., a thermostat switch or a temperature sensor) at the hottest point of the compressor. In compressors manufactured using "high-side" technology, the hottest point is the compressor head. The task of the thermal protection device is to interrupt the power supply circuit or provide a warning signal or trigger an emergency shutdown of the compressor in case the compressor itself overheats.

[0008] It is known to mount the thermal protection device outside the compressor housing, but its fixation is complex and time-consuming. In addition, the thermal protection device must be mounted at the correct position relative to the compressor housing in order to detect the highest temperature condition of the compressor itself. The thermal protection device must also be connected to two cables that transmit its signal to the protection circuit.

[0009] It is also known to cover the electrical connection area and the thermal protection device with a cover that is fixed to the compressor by being inserted onto a threaded pin welded to the compressor housing and locked by a nut screwed onto the threaded pin.

[0010] Since the cover is not adhered to the compressor housing and the power cable of the motor and the cable of the thermal protection device pass through between the cover and the housing, the electrical connections of the motor power supply and the thermal protection device are not completely isolated from the surrounding environment. In the case of leakage of flammable or explosive refrigerant gas (e.g., R290 refrigerant gas (propane)), the sparks that occur in the electrical connection may cause a fire or an explosion. Summary of the Invention

[0011] Accordingly, an object of the present invention is to provide an improved electrical connector for a compressor and a compressor having features that overcome at least some of the disadvantages of the prior art, for example.

[0012] A particular object of the present invention is to provide an improved electrical connector for a compressor and a compressor having features that, for example, contribute to the positioning and installation of a thermal protection device (e.g., a thermal sensor, a thermal protector, a thermostat, a thermal switch, a so-called "Klixon") onto the compressor housing.

[0013] Another particular object of the present invention is to provide an improved electrical connector for a compressor and a compressor having features that, for example, improve the accessibility (for maintenance purposes) of the electrical connection of the thermal protection device after the thermal protection device has been first installed on the compressor, and protect the installed thermal protection device from the external environment (shock, moisture, dust).

[0014] A further particular object of the present invention is to provide an improved electrical connector for a compressor and a compressor having the following characteristics, such as for simplifying and accelerating the electrical connection of the compressor motor and protecting the electrical connection area and isolating the electrical connection area from the external environment (shock, moisture, dust).

[0015] A further particular object of the present invention is to provide an improved electrical connector for a compressor and a compressor having the following characteristics, such as isolating the electrical connection area from an environment where there may be an accumulation of flammable or explosive gases.

[0016] These and other objects are achieved by an electrical connector for a compressor according to the present invention. The dependent claims relate to advantageous and preferred embodiments.

[0017] According to one aspect of the present invention, an electrical connector (1) for a compressor (2), the electrical connector comprising:

[0018] - a connector body (3) made of synthetic material, the connector body having a front side (4) and a rear side (7), the front side being intended to face and press against the outer surface (5) of the compressor (2), and the rear side being opposite to the front side (4),

[0019] - an electrical connection seat (8) formed by the connector body (3), and the electrical connection seat accommodating a plurality of metallic first contact terminals (9) separated from each other through the connector body (3),

[0020] wherein the electrical connection seat (8) forms one or more chambers that are open only at the front side (4) and are hermetically defined by a rear wall (10) of the connector body (3) located at the rear side (7) and by a first side wall (11) of the connector body (3),

[0021] wherein the first contact terminals (9) are intended to contact corresponding first electrical terminals (9') of the compressor (2),

[0022] - a thermal protector seat (12) formed by the connector body (3) at a distance from the electrical connection seat (8), and the thermal protector seat accommodating a plurality of metallic second contact terminals (13) separated from each other through the connector body (3);

[0023] wherein the thermal protector seat (12) is intended to accommodate a thermal protector device (14) and forms a chamber that is open only at the front side (4) of the connector body (3) and is hermetically defined by a rear wall (10) of the connector body (3) located at the rear side (7) and by a second side wall (15) of the connector body (3),

[0024] Among them, the second contact terminal (13) is intended to contact the corresponding second electrical terminal (13') of the thermal protector device (14) accommodated in the thermal protector seat (12).

[0025] - Mounting seat (16), which is formed by the connector body (3), and the mounting seat is spaced apart from the electrical connection seat (8) and spaced apart from the thermal protector seat (12), and the mounting seat is used to mount and clamp the connector body (3) to the compressor (2).

[0026] - First sealing edge (17), which extends in a closed loop on the front side (4) of the connector body (3) around the electrical connection seat (8).

[0027] Among them, the first sealing edge (17) itself or the second sealing edge extends in a closed loop on the front side (4) of the connector body (3) around the thermal protector seat (12).

[0028] - At least a first cable (18), which is connected to the first contact terminal (9) and extends through the wall of the connector body (3) at a certain distance from the front side (4).

[0029] - At least a second cable (19), which is connected to the second contact terminal (13) and extends through the wall of the connector body (3) at a certain distance from the front side (4).

[0030] In use, the electrical connector can be placed with the front side 4 against the outer surface of the compressor and fixed in place by the mounting seat. In this position, the first contact terminal of the electrical connector contacts the first electrical terminal of the compressor (for power supply to the motor), and in this position, the thermal protector device accommodated in the thermal protector seat faces or directly contacts against the outer surface of the compressor, and in this position, the first sealing edge or the first sealing edge and the second sealing edge ensure the sealed enclosure of the electrical connection seat and the thermal protector seat.

[0031] In addition to sealingly isolating the electrical contact area and protecting the thermal protector device from the external environment, the electrical connector also allows the formation of electrical connections and the installation of the thermal protector device using a single quick plug & play gesture, and ensures the planned positions of the individual components.

[0032] Furthermore, since the first contact terminal and the second contact terminal are integrated in the connector body, clamping the connector body against the compressor also ensures a reliable locking of the electrical contact with the first electrical terminal of the compressor. Description of the Drawings

[0033] To better understand the present invention and to appreciate its advantages, some non-limiting embodiments will be described below with reference to the accompanying drawings, in which:

[0034] Figure 1 is an exploded perspective view of a compressor and an electrical connector assembly according to an embodiment,

[0035] Figure 2 is a perspective view of the compressor and the electrical connector assembly in a connected configuration,

[0036] Figure 3 is a partial cross-sectional view of a part of the compressor and the electrical connector in a connected configuration, in which the thermal protector device is not inserted into the electrical connector,

[0037] Figure 4 is another partial cross-sectional view of a part of the compressor and the electrical connector in a connected configuration, in which the thermal protector device is not inserted into the electrical connector,

[0038] Figure 5 is a rear side view of the connector body of the electrical connector according to an embodiment,

[0039] Figure 6 is a front side view of the connector body of the electrical connector according to an embodiment,

[0040] Figure 7 is a perspective view of the electrical connector according to an embodiment,

[0041] Figure 8 is a perspective view of the thermal protector device,

[0042] Figure 9 shows a first electrical quick connector of a cable of the electrical connector according to an embodiment. DETAILED DESCRIPTION

[0043] Referring to the accompanying drawings, an electrical connector 1 for a compressor 2 includes a connector body 3 made of a synthetic material, the connector body having a front side 4 and a rear side 7, the front side 4 being intended to face and press against an outer surface 5 of the compressor 2, and the rear side 7 being opposite to the front side 4.

[0044] The connector body 3 forms an electrical connection seat 8 (e.g., a three-phase connection), which houses (at least partially) a plurality of (e.g., three) metallic first contact terminals 9 spaced apart and separated from each other by the synthetic material of the connector body 3.

[0045] The electrical connection seat 8 forms one or more chambers that are open only at the front side 4 of the connector body 3 and are sealedly defined by a rear wall 10 of the connector body 3 located at the rear side 7 and by a first side wall 11 of the connector body 3 (e.g., tubular).

[0046] (Only accessible from the front side 4) The first contact terminal 9 is intended to contact the corresponding first electrical terminal 9' of the compressor 2.

[0047] The connector body 3 also forms a thermal protector seat 12 at a distance from the electrical connection seat 8, which houses at least two metallic second contact terminals 13 (at least partially) spaced apart from each other by the synthetic material of the connector body 3.

[0048] The thermal protector seat 12 is intended to house the thermal protector device 14 and forms a chamber that is open only on the front side 4 of the connector body 3 and is sealedly delimited by the rear wall 10 of the connector body 3 located on the rear side 7 and by the second side wall 15 (e.g., tubular) of the connector body 3.

[0049] (Only accessible from the front side 4) The second contact terminal 13 is intended to contact the corresponding second electrical terminal 13' of the thermal protector device 14.

[0050] The connector body 3 also forms a mounting seat 16 that is spaced apart from the electrical connection seat 8 (and preferably outside the electrical connection seat) and spaced apart from the thermal protector seat 12 (and preferably outside the thermal protector seat 12), and the mounting seat is used to mount and clamp the connector body 3 to the compressor 2.

[0051] The electrical connector 1 also includes a first sealing edge 17 (or gasket, preferably elastomeric), which extends in a closed loop on the front side 4 of the connector body 3 around the electrical connection seat 8.

[0052] The same first sealing edge 17 or a second sealing edge (or gasket, preferably made of elastic material, not shown in the figure) extends in a closed loop on the front side 4 of the connector body 3 around the thermal protector seat 12.

[0053] The electrical connector 1 also includes: at least one first cable 18 that is connected to the first contact terminal 9 and extends through the wall of the connector body 3 at a distance from the front side 4; and at least a second cable 19 that is connected to the second contact terminal 13 and extends through the wall of the connector body 3 at a distance from the front side 4.

[0054] Mounting base 16

[0055] According to an embodiment, the mounting seat 16 includes a through-hole from the front side 4 to the rear side 7 of the connector body 3, through which the connector body 3 can be assembled onto a threaded pin 22 protruding from the compressor 2 at a predetermined connection position and can be fixed in place by a nut 23 that is screwed onto the threaded pin 22 against the rear side 7 of the connector body 3.

[0056] The mounting seat 16 is preferably formed at an intermediate position or in the middle between the electrical connection seat 8 and the thermal protector seat 12.

[0057] According to an embodiment, the mounting seat 16 is formed at a position inside a single first sealing edge 17, preferably in a central region relative to the single first sealing edge 17.

[0058] Alternatively, the mounting seat 16 is formed at an intermediate position or in the middle between the first sealing edge 17 and the second sealing edge, and can be outside both the first sealing edge and the second sealing edge.

[0059] The described positioning of the mounting seat 16 ensures centered and balanced clamping and more uniform sealing pressure along the first sealing edge and / or the second sealing edge.

[0060] Connector body 3

[0061] According to an embodiment, the connector body 3 is formed by injection overmolding on the first cable 18 and the second cable 19. This further ensures that the connector body 3 is waterproof even in the cable passage area.

[0062] Advantageously, the first cable 18 and the second cable 19 leave the connector body 3 at the rear side 7 of the connector body 3 or through the first side wall 11 and / or the second side wall 15.

[0063] The connector body 3 can also be made of a rigid plastic material (such as polyamide (PA66)). Advantageously, the connector body 3 is made as a single piece.

[0064] According to an embodiment, the connector body 3 forms an intermediate wall 20 that connects the first side wall 11 and the second side wall 15 to each other and forms the mounting seat 16. The intermediate wall 20 can also form a narrowing relative to the first side wall 11 and the second side wall 15 to create a space for the fluid inlet or outlet pipe 21 of the compressor 2, which protrudes outward from the outer surface 5.

[0065] First sealing edge 17 and second sealing edge

[0066] According to an embodiment, the first sealing edge 17 and / or the second sealing edge form a lip-shaped peak protruding from the connector body 3.

[0067] The first sealing edge 17 and / or the second sealing edge can be formed by a gasket made of an elastic material different from the synthetic material of the connector body 3, and is connected to the connector body 3 by co-molding or gluing or interlocking or inserting or fitting, or is connected to the connector body by simply being interposed between the connector body and the compressor 2 when the electrical connector 1 is mounted on the compressor 2.

[0068] According to an embodiment, on the front side 4, the connector body 3 and / or the first sealing edge 17 and / or the second sealing edge (in its undeformed configuration) have a shape or curvature complementary to the shape or curvature of the outer surface 5 of the compressor 2.

[0069] According to an alternative embodiment, on the front side 4, the connector body 3 and / or the first sealing edge 17 and / or the second sealing edge (in its undeformed configuration) have a planar shape and adapt to the curvature of the outer surface 5 of the compressor 2 by elastic deformation when the electrical connector 1 is clamped against the compressor 2.

[0070] First contact terminal 9

[0071] According to an embodiment, the first contact terminal 9 is fixedly or rigidly positioned in the connector body 3, and the first electrical terminal 9' is rigidly or fixedly positioned to the compressor 2, and the first contact terminal and the first electrical terminal can be joined to each other by translational insertion so as to obtain a shape reference for a predetermined connection positioning that is easily executable together with the threaded pin 22 and the mounting seat 16.

[0072] According to an embodiment, the first contact terminal 9 includes a cable joint that is connected or crimped to the wire of the first cable 18 and forms a female coupling seat facing the front side 4 and adapted to receive the corresponding pin of the first electrical terminal 9' by interference.

[0073] Second contact terminal 13

[0074] According to an embodiment, the second contact terminal 13 is fixedly or rigidly positioned in the connector body 3, and the second electrical terminal 13' is rigidly or fixedly positioned to the thermal protector device 14, and the second contact terminal and the second electrical terminal can be joined to each other by translational insertion in a direction parallel to the direction of inserting the thermal protector device 14 into the thermal protector seat 12 from the front side 4 towards the rear side 7 so as to obtain a shape reference for quickly and systematically positioning the thermal protector device 14.

[0075] According to an embodiment, the second contact terminal 13 includes a cable joint that is connected or crimped to the wire of the second cable 19 and forms a female coupling seat facing the front side 4 and adapted to receive the corresponding rod of the second electrical terminal 13' by interference.

[0076] Thermal protector device 14

[0077] The thermal protection device 14 may include one of a thermal sensor, a thermal protector, a thermostat, a thermal switch, a so-called "Klixon", which is connected to an electrical safety circuit configured to perform a shutdown under abnormal temperature conditions.

[0078] First cable 18

[0079] The first cable 18 may include a plurality of wires isolated from each other, and the plurality of wires may be joined together by a single insulating sheath and an external protective member. Distal to the connector body 3, the first cable 18 advantageously has a first quick connector 28, such as type HXT VC-04P with 62002-81PT-1T2 terminals, or type ZuchHP6204J-4Y with TR6204J-1301 terminals, for example having four poles.

[0080] The grounding cable 29 capable of being connected to the metal housing 24 of the compressor 2 may be connected to the wires of the first cable 18 or the poles of the first quick connector 28.

[0081] Second cable 19

[0082] The second cable 19 may include a plurality of wires isolated from each other, and the plurality of wires may be joined together by a single insulating sheath and an external protective member. Distal to the connector body 3, the second cable 19 advantageously has a second quick connector 30, such as type Minifit with 5558TL terminals, for example having two poles.

[0083] Compressor 2

[0084] The electric compressor 2 includes a metal housing 24, a compression path 25 formed in the housing 24 between an inlet opening and an outlet opening, an electric motor 26 disposed in the housing 24, and a mechanical compression mechanism 27 disposed in the housing 24 along the compression path 25. The mechanical compression mechanism is capable of being operated by the electric motor 26 to draw a fluid through the inlet opening, compress the drawn fluid, and discharge the compressed fluid through the outlet opening.

[0085] For example, the electric motor 26 is advantageously a three-phase motor capable of being controlled by an inverter.

[0086] In the housing 24 of the compressor 2, a set (for example, three) of pin-shaped first electrical terminals 9' are provided, which project from the substrate towards the outside of the compressor 2.

[0087] The threaded pin 22 is also connected (e.g., welded) to the housing 24, and is adapted to be inserted into the mounting seat 16 of the electrical connector 1 and receive a nut 23 for locking the electrical connector 1 to the compressor.

[0088] The compressor 2 provided with the electrical connector 1 has technical advantages similar to those described for the reference electrical connector 1.

[0089] In use, the electrical connector 1 can be placed with its front side 4 against the outer surface 5 of the compressor 2 and fixed in place by the mounting seat 16, in which position the first contact terminals 9 of the electrical connector 1 contact the first electrical terminals 9' of the compressor 2 (for power supply to the motor), and in which position the thermal protector device 14 housed in the thermal protector seat 12 faces or directly contacts against the outer surface 5 of the compressor 2, and in which position the first sealing edge 17 or the first and second sealing edges ensure the sealed enclosure of the electrical connection seat 8 and the thermal protector seat 12.

[0090] In addition to sealingly isolating the electrical contact area and protecting the thermal protector device 14 from the external environment, the electrical connector also allows for the formation of the electrical connection for the motor and the installation of the thermal protector device 14 in a single quick plug-and-play gesture and ensures the planned positions of the respective components.

[0091] Furthermore, since the first contact terminals 9 and the second contact terminals 13 are integrated in the connector body 3, clamping the connector body 3 against the compressor 2 also ensures the reliable locking of the electrical contact with the first electrical terminals 9' of the compressor 2.

[0092] The electrical connector 1 and the compressor 2 having the electrical connector 1 contribute to positioning and assembling the thermal protector device onto the compressor housing, improving the accessibility (for maintenance purposes) of the connection to the thermal protector device after it is first installed on the compressor, protecting the installed thermal protector device from the external environment (shocks, moisture, dust), simplifying and accelerating the electrical connection of the compressor motor, protecting the electrical connection area and isolating the electrical connection area from the external environment (shocks, moisture, dust, accumulation of flammable or explosive gases).

[0093] List of reference numerals in the drawings Electrical connector 1

[0094] Compressor 2

[0095] Connector body 3

[0096] Front side 4

[0097] Outer surface 5

[0098] Fluid inlet or outlet pipe 6

[0099] Rear side 7

[0100] Electrical connection base 8

[0101] First contact terminal 9

[0102] First electrical terminal 9'

[0103] Rear wall 10

[0104] First side wall 11

[0105] Thermal protector base 12

[0106] Second contact terminal 13

[0107] Second electrical terminal 13'

[0108] Thermal protector device 14

[0109] Second side wall 15

[0110] Mounting base 16

[0111] First sealing edge 17

[0112] First cable 18

[0113] Second cable 19

[0114] Intermediate wall 20

[0115] Fluid inlet or outlet pipe 21

[0116] Threaded pin 22

[0117] Nut 23

[0118] Housing 24

[0119] Compression path 25

[0120] Motor 26

[0121] Compression mechanism 27

[0122] First quick connector 28

[0123] Grounding cable 29

[0124] Second quick connector 30

Claims

1. An electrical connector (1) for a compressor (2), the electrical connector comprising: a connector body (3) made of synthetic material, having a front side (4) and a rear side (7), the front side being intended to face and come into pressing contact with an outer surface (5) of the compressor (2), and the rear side being opposite the front side (4), - an electrical connection seat (8), which is formed by the connector body (3) and accommodates a plurality of metallic first contact terminals (9) separated from each other by the connector body (3), The electrical connection seat (8) forms one or more chambers, which are open only on the front side (4) and are sealed by a rear wall (10) of the connector body (3) located on the rear side (7) and by a first side wall (11) of the connector body (3), wherein the first contact terminal (9) is intended to contact a corresponding first electrical terminal (9') of the compressor (2), - a thermal protector seat (12), which is formed by the connector body (3) at a certain distance from the electrical connection seat (8) and accommodates a plurality of metallic second contact terminals (13) separated from each other by the connector body (3); wherein the thermal protector seat (12) is intended to accommodate a thermal protector device (14) and forms a chamber which is open only on the front side (4) of the connector body (3) and is sealed by a rear wall (10) of the connector body (3) located on the rear side (7) and by a second side wall (15) of the connector body (3), wherein the second contact terminal (13) is intended to contact a corresponding second electrical terminal (13') of the thermal protector device (14) accommodated in the thermal protector seat (12), - a mounting seat (16), which is formed by the connector body (3) and is spaced apart from the electrical connection seat (8) and from the thermal protector seat (12), and is used to mount and clamp the connector body (3) to the compressor (2), - a first sealing edge (17) extending in a closed loop around the electrical connection seat (8) on the front side (4) of the connector body (3), wherein the first sealing edge (17) itself or the second sealing edge extends in a closed loop around the thermal protector seat (12) on the front side (4) of the connector body (3), - at least a first cable (18) which is connected to the first contact terminal (9) and which extends through the wall of the connector body (3) at a distance from the front side (4); - at least a second cable (19) which is connected to the second contact terminal (13) and which extends through the wall of the connector body (3) at a distance from the front side (4).

2. The electrical connector (1) according to claim 1, wherein: The mounting seat (16) comprises a through hole from the front side (4) to the rear side (7) of the connector body (3), through which the connector body (3) can be assembled onto a threaded pin (22) protruding from the compressor (2) and can be fixed in place by a nut (23) which is screwed onto the threaded pin (22) against the rear side (7) of the connector body (3).

3. An electrical connector (1) according to any one of the preceding claims, wherein: The mounting seat (16) is formed at an intermediate position or a middle portion between the electrical connection seat (8) and the thermal protector seat (12).

4. The electrical connector (1) according to claim 1 or 2, wherein: The mounting seat (16) is formed at an inner position relative to the first sealing edge (17).

5. The electrical connector (1) according to claim 1 or 2, wherein: The mounting seat (16) is formed at an intermediate position or middle between the first sealing edge (17) and the second sealing edge, outside the first sealing edge and the second sealing edge.

6. The electrical connector (1) according to claim 1 or 2, wherein: The connector body (3) is formed by injection overmolding on the first cable (18) and the second cable (19).

7. The electrical connector (1) according to claim 1 or 2, wherein: The first cable (18) and the second cable (19) exit from the connector body (3) on the rear side (7) of the connector body or through the first side wall (11) and / or the second side wall (15).

8. The electrical connector (1) according to claim 1 or 2, wherein: The connector body (3) is a single piece made of rigid plastic material.

9. The electrical connector (1) according to claim 1 or 2, wherein: The connector body (3) forms an intermediate wall (20) which connects the first side wall (11) and the second side wall (15) to each other and forms the mounting seat (16), The intermediate wall (20) forms a narrow portion relative to the first side wall (11) and the second side wall (15) to create a space for a fluid inlet or outlet pipe (21) of the compressor (2).

10. The electrical connector (1) according to claim 1 or 2, wherein: The first sealing edge (17) and / or the second sealing edge forms a lip-shaped peak protruding from the connector body (3) toward the front side (4).

11. The electrical connector (1) according to claim 1 or 2, wherein: The first sealing edge (17) and / or the second sealing edge is formed by a gasket, which is made of an elastic material different from the material of the connector body (3) and is connected to the connector body (3) in the following manner: - Co-molded, -glued, - interlocking or insertion or assembly, - between the connector body (3) and the compressor (2).

12. The electrical connector (1) according to claim 1 or 2, wherein: On the front side (4), the connector body (3) or the first sealing edge (17) in a non-deformed configuration has a curvature that is complementary to the curvature of the outer surface (5) of the compressor (2).

13. The electrical connector (1) according to claim 1 or 2, wherein: On the front side (4), the connector body (3) or the first sealing edge (17) in a non-deformed configuration has a planar shape and adapts to the curvature of the outer surface (5) of the compressor (2) by elastic deformation during clamping of the electrical connector (1) against the compressor (2).

14. The electrical connector (1) according to claim 1 or 2, wherein: The first contact terminal (9) is fixedly positioned in the connector body (3), and the first electrical terminal (9') is fixedly positioned to the compressor (2), and the first contact terminal and the first electrical terminal can be engaged with each other by translational insertion.

15. The electrical connector (1) according to claim 1 or 2, wherein: The first contact terminal (9) comprises a cable connector connected to the wires of the first cable (18) and forming a female coupling seat facing the front side (4) and suitable for interference receiving a corresponding pin of the first electrical terminal (9').

16. The electrical connector (1) according to claim 1 or 2, wherein: The second contact terminal (13) is fixedly positioned in the connector body (3), and the second electrical terminal (13') is fixedly positioned to the thermal protector device (14), and the second contact terminal and the second electrical terminal can be engaged with each other by translational insertion from the front side (4) toward the rear side (7) in parallel with the direction in which the thermal protector device (14) is inserted into the thermal protector seat (12), so as to obtain a shape reference for positioning the thermal protector device (14).

17. The electrical connector (1) according to claim 1 or 2, wherein: The second contact terminal (13) comprises a cable connector connected to the wires of the second cable (19) and forming a female coupling seat facing the front side (4) and suitable for interference receiving a corresponding rod of the second electrical terminal (13').

18. The electrical connector (1) according to claim 1 or 2, wherein: The wire or quick connector (28) of the first cable (18) is connected to a ground cable (29) using a cable gland that can be connected to the metal housing (24) of the compressor (2).

19. A compressor-electrical connector combination, comprising: A compressor (2) comprising: a metal housing (24); a compression path (25) formed in the housing (24) between an inlet opening and an outlet opening; a three-phase electric motor (26) arranged in the housing (24); a set of pin-shaped first electric terminals (9') protruding from a base plate toward the outside of the compressor (2); a threaded pin (22) protruding from the housing (24); a compression mechanism (27) arranged in the housing (24) along the compression path (25) and operable by the motor (26) to draw fluid through the inlet opening, compress the drawn fluid, and push the compressed fluid out of the outlet opening, - Electrical connector (1) according to any one of the preceding claims.

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