CN220067027U - Motor and compressor with same - Google Patents

Abstract

The utility model discloses a motor and a compressor with the same. The motor includes: the three-connecting bridge terminal is a conductive piece and comprises a first terminal part, a second terminal part and a third terminal part, wherein any two adjacent terminal parts in the first terminal part, the second terminal part and the third terminal part are connected through a connecting neck part; the plurality of crimp lines includes: n lead wires and N group wire group, every group wire group includes many wires, and N lead wires are connected with N group wire group one-to-one, and wherein at least one group wire group is connected through three bridge terminals with corresponding lead wires, and each terminal part in first terminal portion, second terminal portion and the third terminal portion is voltage-sharing connects at least one pressure wiring. According to the motor provided by the utility model, the three connecting bridge terminals can be used for crimping a plurality of wires and outgoing lines thereof, so that the crimping speed and the production efficiency are improved.

Description

Motor and compressor with same

Technical Field

The utility model relates to the technical field of compressors, in particular to a motor and a compressor with the motor.

Background

In the production process of the compressor motor, a mode of crimping a lead wire and an outgoing wire by a single metal terminal is generally adopted, the lead wire and the outgoing wire are connected, and the crimping speed and the production efficiency are improved on the premise of conducting. However, with continuous innovation of electrical equipment, especially a compressor motor, more and more wire outlet ends of motor coils are provided, namely more and more wires are provided, and finally, the stator is connected with an external interface only by virtue of the wires, which means that one wire outlet needs to be combined with a plurality of wires to form an output end, and the plurality of wires and the wires cannot be crimped in one metal terminal.

Disclosure of Invention

The present utility model aims to solve, at least to some extent, one of the above technical problems in the prior art. Therefore, the motor provided by the utility model can be used for crimping a plurality of wires and outgoing lines thereof, and the crimping speed and the production efficiency are improved.

The utility model also provides a compressor with the motor.

The motor according to the embodiment of the utility model comprises: the three-connection bridge terminal is a conductive piece and comprises a first terminal part, a second terminal part and a third terminal part, wherein any two adjacent terminal parts in the first terminal part, the second terminal part and the third terminal part are connected through a connecting neck part; the plurality of crimp lines includes: n lead wires and N group wire groups, every group the wire group includes many wires, N lead wires with N group wire group one-to-one is connected, and wherein at least one set of the wire group with corresponding the lead wire is connected through three bridging terminals, each terminal part in first terminal part, second terminal part and the third terminal part is voltage-sharing connects at least one the pressure wiring.

According to the motor provided by the embodiment of the utility model, at least one wire group is connected with the corresponding outgoing wire through the three connecting bridge terminals, each of the first terminal part, the second terminal part and the third terminal part is in pressure-equalizing connection with at least one pressure connection wire, and a plurality of wires and the outgoing wires thereof can be in pressure-connecting connection through the three connecting bridge terminals, so that the pressure-connecting speed and the production efficiency are improved.

According to some embodiments of the utility model, the first terminal portion is crimped to the lead wire, the second terminal portion is crimped to correspond to at least one wire of the wire set, and the third terminal portion is crimped to correspond to at least one wire of the wire set.

According to some embodiments of the utility model, the first terminal portion is further crimped to correspond to at least one wire of the wire set.

According to some embodiments of the utility model, n=6.

According to some embodiments of the utility model, each of the wire sets includes three wires, the second terminal portion is crimped to two wires, and the third terminal portion is crimped to one wire.

According to some embodiments of the utility model, an arrangement direction of two adjacent terminal portions of the first terminal portion, the second terminal portion, and the third terminal portion is a length direction of the connection neck portion, a length of the connection neck portion is not more than 3mm, and a width of the connection neck portion is not more than 2mm.

According to some embodiments of the utility model, each of the first, second and third terminal portions includes a body piece, a first tab and a second tab, one end of the first tab and one end of the second tab are each connected to the body piece, and the body pieces of any adjacent two terminal portions of the three-bridge terminal are connected by the connecting neck portion.

According to some embodiments of the utility model, the other end of the first tab and the other end of the second tab are connected and each separated from the body panel.

According to some embodiments of the utility model, the first tab, the body tab and the second tab enclose a crimp space, and a protrusion is provided on an inner wall of the crimp space, the protrusion being for piercing an insulation sheath of the crimp line.

According to some embodiments of the utility model, the raised portion is configured as a plurality of U-shaped raised burrs arranged in parallel, the raised burrs protruding the height of the inner wall by no more than 2 μm.

According to some embodiments of the utility model, a direction from the body piece to the connection of the first tab and the second tab is a height direction of the terminal portion, a direction from the first tab to the second tab is a width direction of the terminal portion, the height of the terminal portion is not more than 2.5mm, and the width of the terminal portion is not more than 4mm.

According to some embodiments of the utility model, the motor further comprises a stator core and a stator winding, the stator core has a plurality of stator slots, the stator winding is wound around the plurality of stator slots, and the N groups of wires are connected with the stator winding.

According to some embodiments of the utility model, one conductive interface is shared by one end of each two outgoing lines far away from the lead, and the motor further comprises a shell, and the conductive interface is connected and conducted with the shell.

According to another embodiment of the present utility model, a compressor includes the above motor.

The compressor can be used for crimping a plurality of wires and outgoing lines thereof through the three connecting bridge terminals, so that the crimping speed and the production efficiency are improved.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

FIG. 1 is a schematic diagram of an electric machine according to one embodiment of the utility model;

FIG. 2 is a schematic diagram of a three-bridge terminal according to one embodiment of the utility model;

FIG. 3 is a simplified schematic diagram of FIG. 2;

FIG. 4 is a schematic diagram of a three-bridge terminal crimping three conductors and one outlet according to one embodiment of the utility model;

FIG. 5 is a schematic diagram of a pinout according to one embodiment of the utility model;

FIG. 6 is a schematic diagram of stator winding wires according to one embodiment of the utility model;

fig. 7 is a schematic view of a stator core according to an embodiment of the present utility model;

FIG. 8 is a graph of temperature rise versus current carrying for a three-bridge terminal according to one embodiment of the utility model;

fig. 9 is a schematic view of a compressor according to an embodiment of the present utility model.

Reference numerals: compressor 1000, motor 100, stator core 10, stator piece 11, riveting point 12, stator slot 13, stator winding 20, casing 30;

the three-bridge terminal 43, the first terminal portion 411, the second terminal portion 412, the third terminal portion 413, and the connection neck portion 42;

the press wire 50, the outgoing wire 53, the conductive interface 54, the copper wire 55, the insulating housing 56, and the binding wire 57;

the wire 60, the wire group 61, the body piece 45, the first tab 46, the second tab 47, the crimping space 48, the boss 49.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

The motor 100 and the compressor 1000 according to the embodiment of the present utility model are described in detail below with reference to fig. 1 to 9.

Referring to fig. 1-4, an electric machine 100 according to an embodiment of the present utility model may include three bridge terminals 43 and a plurality of crimp lines 50. The three-bridge terminal 43 is a conductive member and includes a first terminal portion 411, a second terminal portion 412, and a third terminal portion 413, any two adjacent terminal portions among the first terminal portion 411, the second terminal portion 412, and the third terminal portion 413 are connected by a connection neck portion 42, the connection neck portion 42 connects the first terminal portion 411, the second terminal portion 412, and the third terminal portion 413 as a whole, and the three-bridge terminal 43 has an effect of connecting and conducting the plurality of wires 60 and the corresponding lead wires 53. Alternatively, the three-bridge terminal 43 is made of a conductive material such as copper, aluminum, or the like.

The plurality of crimp lines 50 may include N lead lines 53 and N sets of wire sets 61, each set of wire sets 61 including a plurality of wires 60, the N lead lines 53 being connected in one-to-one correspondence with the N sets of wire sets 61, and wherein at least one set of wire sets 61 is connected with the corresponding lead lines 53 through three connecting bridge terminals 43, each of the first terminal portion 411, the second terminal portion 412, and the third terminal portion 413 being pressure-contacted with at least one crimp line 50. Alternatively, the lead wire 53 may be crimped to any one of the first terminal portion 411, the second terminal portion 412, and the third terminal portion 413, the wire 60 may be crimped to any one of the first terminal portion 411, the second terminal portion 412, and the third terminal portion 413, and the wire 60 and the lead wire 53 may be simultaneously crimped to the same terminal portion or may not be simultaneously crimped to one terminal portion. The number of the respective crimp conductors 60 and the condition of the lead wires 53 at the respective terminal portions in the three-bridge terminal 43 can be freely combined and crimped without sequential division, but it is necessary to ensure that each terminal portion is not compressed. For example, as shown in fig. 4, the bonding wire 50 includes one lead wire 53 and three wires 60, the first terminal portion 411 is bonded to the one lead wire 53, the second terminal portion 412 is bonded to the two wires 60, and the third terminal portion 413 is bonded to the one wire 60. A part of the wire group 61 and the outgoing wire 53 thereof may also be crimped in a two-bridge terminal including the first terminal portion 411 and the second terminal portion 412.

According to the motor 100 of the embodiment of the present utility model, since at least one wire group 61 is connected to the corresponding outgoing wire 53 through the three-bridge terminal 43, each of the first terminal portion 411, the second terminal portion 412 and the third terminal portion 413 is pressure-bonded to at least one crimp wire 50, the three-bridge terminal 43 has more terminal portions, and the plurality of wires 60 and the outgoing wires 53 thereof can be pressure-bonded through the three-bridge terminal 43, thereby improving the pressure bonding speed and the production efficiency.

In some embodiments of the present utility model, referring to fig. 1-4, the first terminal portion 411 is crimped to the outgoing line 53, the second terminal portion 412 is crimped to at least one wire 60 in the corresponding wire set 61, and the third terminal portion 413 is crimped to at least one wire 60 in the corresponding wire set 61. For example, as shown in fig. 4, the bonding wire 50 includes one lead wire 53 and three wires 60, the first terminal portion 411 is bonded to the one lead wire 53, the second terminal portion 412 is bonded to the two wires 60, and the third terminal portion 413 is bonded to the one wire 60. Three wires 60 and one lead wire 53 may be crimped in the first terminal portion 411, the second terminal portion 412 and the third terminal portion 413, respectively, in a free combination, for example, in an embodiment not shown in the present utility model, the lead wire 53 and one wire 60 may be crimped in the first terminal portion 411, and the second terminal portion 412 and the third terminal portion 413 may be crimped with one wire 60, respectively.

In some embodiments of the present utility model, the first terminal portion 411 is also crimped to at least one wire 60 in the corresponding wire set 61. Alternatively, the first terminal portion 411 may be crimped with one lead wire 53 and one wire 60, or may be crimped with one lead wire 53 and two wires 60, or one lead wire 53 and more wires 60.

In some embodiments of the present utility model, n=6 as shown with reference to fig. 1 and 5. That is, the plurality of crimp lines 50 includes six lead lines 53 and six groups of lead lines 61, the six lead lines 53 are connected to the six groups of lead lines 61 in one-to-one correspondence, and each group of lead lines 61 is connected to an external circuit through one lead line 53. Six lead wires 53 are bundled by a binding wire 57.

In some embodiments of the present utility model, referring to fig. 1 and 4, each wire group 61 includes three wires 60, the second terminal portion 412 is crimped to two wires 60, and the third terminal portion 413 is crimped to one wire 60. Each of the six wire sets 61 includes three wires 60, a total of 18 wires 60, and the wires 60 of each wire set 61 and the outgoing wires 53 thereof may be respectively crimped within one three-bridge terminal 43, for example, the first terminal portion 411 is crimped with one outgoing wire 53, the second terminal portion 412 is crimped with two wires 60, and the third terminal portion 413 is crimped with one wire 60.

In some embodiments of the present utility model, referring to fig. 2 to 4, the arrangement direction of adjacent two terminal parts among the first, second and third terminal parts 411, 412 and 413 is the length direction of the connection neck part 42, the length of the connection neck part 42 is not more than 3mm, and the width of the connection neck part 42 is not more than 2mm. As shown in fig. 2, the longitudinal direction of the connecting neck portion 42 is the Y direction, the width direction of the connecting neck portion 42 is the X direction, and the longitudinal direction Y of the connecting neck portion 42 and the width direction X of the connecting neck portion 42 are perpendicular to each other. The length of the connecting neck 42 is A, the value of A is in the range of 0 < A.ltoreq.3 mm, alternatively, A can be 1mm, 2mm, 3mm, of course, A can also be other values between 0 and 3 mm. The width of the connecting neck 42 is B, and B is in the range of 0 < B.ltoreq.2 mm, alternatively B may be 1mm, 2mm, although B may be other values between 0 and 2mm. Maintaining the length a and width B of the connecting neck 42 within the above ranges is advantageous for cost savings.

As shown in fig. 8, the test chart of the three-bridge current-carrying-temperature rise test shows that the overall temperature rise of the three-bridge terminal 43 increases gradually with the increase of the current carrying, and the three-bridge terminal has a substantially binomial parabolic shape, and the fitting degree reaches 99.9%. When the three bridge terminals 43 carry current 20A, the temperature rise is maximum, still not exceeding 30 ℃, with some margin. Illustrating the current carrying capability of the three-bridge terminal 43 is reliable in the current industry. As can be seen from this, although the sectional area of the connection neck portion 42 of the three-bridge terminal 43 is reduced in a protruding manner, reliable connection of the lead wire group 61 to the corresponding lead wire 53 can be achieved.

In some embodiments of the present utility model, referring to fig. 2, each of the first, second and third terminal parts 411, 412 and 413 includes a body piece 45, a first tab 46 and a second tab 47, one end of the first tab 46 and one end of the second tab 47 are connected to the body piece 45, and the body pieces 45 of any adjacent two terminal parts of the three-bridge terminal 43 are connected by a connection neck 42. As shown in fig. 2, the first tab 46 is located on the left side of the body piece 45, the second tab 47 is located on the right side of the body piece 45, the first tab 46 and the second tab 47 form a U-shaped terminal portion, and the body piece 45, the first tab 46 and the second tab 47 are all made of conductive materials. The first tab 46 and the second tab 47 are used for wrapping the outgoing lines 53 and the wires 60, the connecting neck portion 42 can conduct the first terminal portion 411, the second terminal portion 412 and the third terminal portion 413, the first terminal portion 411, the second terminal portion 412 and the third terminal portion 413 are connected into a whole through the connecting neck portion 42, the three-bridge terminal 43 can be used for crimping the plurality of wires 60 and the corresponding outgoing lines 53, and the structure is simple, and crimping efficiency is high.

In some embodiments of the present utility model, referring to fig. 4, the other end of the first tab 46 and the other end of the second tab 47 are connected and both the other end of the first tab 46 and the other end of the second tab 47 are separated from the body panel 45. Alternatively, as shown in fig. 4, the first tab 46 and the second tab 47 are connected at an end far from the body piece 45, the first tab 46, the body piece 45 and the second tab 47 can enclose a crimping space 48, the wire group 61 and the corresponding outgoing wire 53 are respectively located in the crimping space 48, and the wire group 61 and the outgoing wire 53 in different terminal portions are mutually conducted through the connecting neck portion 42. Alternatively, the first and second terminal portions 411, 412, 413 are gradually bent inward by the pressure of the die blade until the first and second tabs 46, 47 are completely closed, deforming into an "m" shape. The ends of the first tab 46 and the second tab 47 remote from the body piece 45 are separated from the body piece 45, contributing to the increased crimping space 48. In some embodiments, not shown, the ends of the first tab 46 and the second tab 47 remote from the body piece 45 may be separated, and the crimp space 48 may be increased while the wire 60 and the outlet 53 may be conducted.

In some embodiments of the present utility model, referring to fig. 2-5, the first tab 46, the body tab 45 and the second tab 47 enclose a crimp space 48, and a protrusion 49 is provided on an inner wall of the crimp space 48, the protrusion 49 being used to pierce an insulating sheath of the crimp line 50. Alternatively, referring to fig. 5, the lead wire 53 is made of a copper wire 55 and an insulating housing 56, the insulating housing 56 is wrapped outside the copper wire 55, and the protrusion 49 pierces the insulating housing 56, so that the lead wire 60 in the crimp space 48 and the lead wire 53 can be conducted. Meanwhile, after the protrusion 49 pierces the insulating housing 56 of the lead 60 and the outgoing line 53, a blocking force is generated on the insulating housing 56 of the lead 60 and the outgoing line 53, which is beneficial to fixing the lead 60 and the outgoing line 53 in the crimping space 48, and is not easy to loose.

In some embodiments of the present utility model, referring to fig. 2, the boss 49 is configured as a plurality of U-shaped boss burrs arranged in parallel, and the height of the boss burrs protruding the inner wall is not more than 2 μm. As shown in fig. 2, the plurality of U-shaped protruding burrs are uniformly distributed inside the first terminal portion 411 and the second terminal portion 412 along the length direction Y of the connection neck portion 42. Each of the U-shaped protruding burrs extends along the width direction X of the connecting neck 42. Alternatively, the height of the protruding burr protruding from the inner wall may be 1 μm or 2 μm, or may be other values between 0 and 2 μm, and controlling the height of the protruding burr protruding from the inner wall to be within 2 μm can effectively reduce the occupation of the protruding portion 49 to the crimping space 48, and simultaneously, the lead 60 and the lead-out wire 53 in the crimping space 48 are conducted.

In some embodiments of the present utility model, referring to fig. 4, the direction from the body piece 45 to the connection of the first tab 46 and the second tab 47 is the height direction of the terminal portion, the direction from the first tab 46 to the second tab 47 is the width direction of the terminal portion, the height of the terminal portion is not more than 2.5mm, and the width of the terminal portion is not more than 4mm. As shown in fig. 4, after the lead wire 60 and the lead wire 53 are crimped, the heights of the first terminal portion 411, the second terminal portion 412 and the third terminal portion 413 are not more than 2.5mm, the widths thereof are not more than 4mm, the height directions of the first terminal portion 411, the second terminal portion 412 and the third terminal portion 413 are Y directions, the width directions of the first terminal portion 411, the second terminal portion 412 and the third terminal portion 413 are X directions, the heights along the Y directions of the first terminal portion 411, the second terminal portion 412 and the third terminal portion 413 are C, the value range of the height C is 0 < c.ltoreq.2.5 mm, alternatively, the height C may be 0.5mm, 1.0mm, 1.5mm, 2.0mm, 2.5mm, of course, the height C may be other values between 0 and 2.5 mm.

The widths of the first terminal portion 411, the second terminal portion 412 and the third terminal portion 413 along the X direction are D, the value range of the width D is 0 < d.ltoreq.4 mm, alternatively, the width D may be 0.5mm, 1.0mm, 1.5mm, 2.0mm, 2.5mm, 3.0mm, 3.5mm, 4mm, of course, the width D may be other values between 0 and 4mm.

In some embodiments of the present utility model, referring to fig. 1, 6 and 7, the motor 100 further includes a stator core 10 and a stator winding 20, the stator core 10 has a plurality of stator slots 13, the stator winding 20 is wound around the plurality of stator slots 13, and n groups of wire groups 61 are connected to the stator winding 20. Alternatively, the stator core 10 is formed by stacking a plurality of stator loose pieces 11 in a riveting manner, each stator loose piece 11 is provided with a riveting point 12, and the stator loose pieces 11 are riveted and fixed through the riveting points 12. The stator winding 20 is wound in the stator slot 13.

In some embodiments of the present utility model, referring to fig. 5, the end of each two outgoing wires 53 away from the wire 60 shares one conductive interface 54, and the motor 100 further includes a housing 30, where the conductive interface 54 is connected to and conducted with the housing 30. Thus, the lead 60 is electrically connected to the housing 30 via the lead 53, and the housing 30 is electrically connected to the electrical device.

In the related art, since the compressor 1000 is developed toward high power, the current passing through the stator of the motor 100 of the high power compressor 1000 is large, and the current requirement cannot be satisfied by connecting one lead wire 53 to one conductive interface 54. To avoid that the high current passes through a single lead-out wire 53 and exceeds the safety standard, two lead-out wires 53 are butted with each conductive plug-in interface 54, and two identical lead-out wires 53 are converged into one end part at the conductive plug-in interface 54, namely, six lead-out wires 53 are corresponding to three conductive plug-in interfaces 54, as shown in fig. 5. Two lead wires 53 corresponding to each conductive socket 54, each lead wire 53 being in pressure-contact communication with a corresponding lead wire group 61 through the three-bridge terminal 43.

A specific embodiment of the motor 100 according to the present utility model is provided below.

The motor 100 includes three bridge terminals 43 and a plurality of crimp lines 50. The three-bridge terminal 43 is a conductive member and includes a first terminal portion 411, a second terminal portion 412, and a third terminal portion 413, adjacent two terminal portions among the first terminal portion 411, the second terminal portion 412, and the third terminal portion 413 are connected by a connection neck portion 42, the connection neck portion 42 connects the first terminal portion 411, the second terminal portion 412, and the third terminal portion 413 as a unit, and the three-bridge terminal 43 has an effect of connecting and conducting the plurality of wires 60 and the corresponding lead wires 53. The arrangement direction of two adjacent terminal portions among the first terminal portion 411, the second terminal portion 412, and the third terminal portion 413 is the length direction of the connection neck portion 42, the length of the connection neck portion 42 is 3mm, and the width of the connection neck portion 42 is 2mm.

The plurality of crimp lines 50 includes six lead-out wires 53 and six wire groups 61, the six lead-out wires 53 are connected to the six wire groups 61 in one-to-one correspondence, and each wire group 61 is connected to an external circuit through one lead-out wire 53. Each wire group 61 includes three wires 60, a first terminal portion 411 is crimped to one lead-out wire 53, a second terminal portion 412 is crimped to two wires 60, and a third terminal portion 413 is crimped to one wire 60.

Each of the first, second and third terminal portions 411, 412 and 413 includes a body piece 45, a first tab 46 and a second tab 47, one end of the first tab 46 and one end of the second tab 47 are connected to the body piece 45, and the body pieces 45 of any adjacent two terminal portions of the three-bridge terminal 43 are connected by a connecting neck portion 42. The first tab 46 is located on the left side of the body piece 45, the second tab 47 is located on the right side of the body piece 45, the first tab 46 and the second tab 47 form a U-shaped terminal portion, and the body piece 45, the first tab 46 and the second tab 47 are all made of copper. The first tab 46 and the second tab 47 gradually bend inward under the pressure of the die blade until they are completely closed, deforming into an "m" shape. The first tab 46 and the second tab 47 are connected at one end far away from the body piece 45, the first tab 46, the body piece 45 and the second tab 47 can enclose a crimping space 48, the wire set 61 and the corresponding outgoing wire 53 are respectively located in the crimping space 48, and the wire set 61 and the outgoing wire 53 in different terminal portions are mutually conducted through the connecting neck portion 42. The direction from the body piece 45 to the connection of the first tab 46 and the second tab 47 is the height direction of the terminal portion, the direction from the first tab 46 to the second tab 47 is the width direction of the terminal portion, the height of the terminal portion is 2.5mm, and the width of the terminal portion is 4mm.

The lead 60 and the outgoing line 53 are made of copper wires 55 and an insulating housing 56, the insulating housing 56 is wrapped on the outer side of the copper wires 55, and the protruding portion 49 pierces the insulating housing, so that the lead 60 and the outgoing line 53 in the crimping space 48 can be conducted. The protruding portion 49 is configured as a plurality of U-shaped protruding burrs arranged in parallel, and the protruding burrs protrude to the height of the inner wall by 1 μm.

The motor 100 further comprises a stator core 10 and a stator winding 20, the stator core 10 is provided with a plurality of stator slots 13, the stator winding 20 is wound on the plurality of stator slots 13, the stator core 10 is formed by stacking a plurality of stator loose pieces 11 in a riveting mode, each stator loose piece 11 is provided with a riveting point 12, and the plurality of stator loose pieces 11 are fixedly riveted through the riveting points 12. The stator winding 20 is wound in the stator slot 13.

Referring to fig. 9, a compressor 1000 according to another aspect of the present utility model, including the motor 100 of the above-described embodiment, the compressor 1000 can crimp a plurality of wires 60 and the outgoing lines 53 thereof through the three-way connection terminals 43, improving the crimping speed and the production efficiency. One end of each two outgoing lines 53 far away from the lead wires 60 shares one conductive plug-in interface 54, which can meet the safety standard of the high-power compressor 1000 and solve the problem that the high current exceeds the safety requirement when passing through the outgoing lines 53 under high power.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Further, one skilled in the art can engage and combine the different embodiments or examples described in this specification.

In the description of the present utility model, it should be understood that the terms "length," "width," "height," "upper," "lower," "left," "right," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", and "a third" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "connected," "fixed" and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.

Claims (14)

1. An electric machine, comprising:

the three-connection bridge terminal is a conductive piece and comprises a first terminal part, a second terminal part and a third terminal part, wherein any two adjacent terminal parts in the first terminal part, the second terminal part and the third terminal part are connected through a connecting neck part;

a plurality of crimp lines, the plurality of crimp lines comprising: n lead wires and N group wire groups, every group the wire group includes many wires, N lead wires with N group wire group one-to-one is connected, and wherein at least one set of the wire group with corresponding the lead wire is connected through three bridging terminals, each terminal part in first terminal part, second terminal part and the third terminal part is voltage-sharing connects at least one the pressure wiring.

2. The electrical machine of claim 1, wherein the first terminal portion is crimped to the lead wire, the second terminal portion is crimped to correspond to at least one wire of the wire set, and the third terminal portion is crimped to correspond to at least one wire of the wire set.

3. The electrical machine of claim 2, wherein the first terminal portion is further crimped to correspond to at least one wire of the wire set.

4. The electric machine of claim 2, wherein N = 6.

5. The electrical machine of claim 2, wherein each of the wire sets includes three wires, the second terminal portion being crimped to two wires, the third terminal portion being crimped to one wire.

6. The motor according to claim 1, wherein an arrangement direction of adjacent two of the first terminal portion, the second terminal portion, and the third terminal portion is a length direction of the connection neck portion, a length of the connection neck portion is not more than 3mm, and a width of the connection neck portion is not more than 2mm.

7. The electrical machine of any one of claims 1-6, wherein each of the first, second, and third terminal portions includes a body piece, a first tab, and a second tab, one end of the first tab and one end of the second tab each being connected to the body piece, the body pieces of any adjacent two terminal portions of the three-way terminal being connected by the connecting neck.

8. The motor of claim 7, wherein the other end of the first tab and the other end of the second tab are connected and each separated from the body piece.

9. The motor of claim 7, wherein the first tab, the body piece, and the second tab enclose a crimp space, and wherein a protrusion is provided on an inner wall of the crimp space, the protrusion being for piercing an insulation sheath of the crimp line.

10. The motor of claim 9, wherein the boss is configured as a plurality of U-shaped boss burrs arranged in parallel, the boss burrs protruding the height of the inner wall by no more than 2 μm.

11. The motor of claim 7, wherein a direction from the body piece to the connection of the first tab and the second tab is a height direction of the terminal portion, a direction from the first tab to the second tab is a width direction of the terminal portion, the height of the terminal portion is not more than 2.5mm, and the width of the terminal portion is not more than 4mm.

12. The electric machine of claim 1, further comprising a stator core having a plurality of stator slots and a stator winding wound around the plurality of stator slots, the N groups of wire sets being connected to the stator winding.

13. The motor of claim 1, wherein one conductive socket is shared by one end of each two outgoing lines far away from the lead wires, and the motor further comprises a shell, and the conductive sockets are connected and conducted with the shell.

14. A compressor comprising the motor of any one of claims 1-13.