CN102220954A - Sealed type electric compressor, refrigeration cycle device - Google Patents
Sealed type electric compressor, refrigeration cycle device Download PDFInfo
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- CN102220954A CN102220954A CN2010102582136A CN201010258213A CN102220954A CN 102220954 A CN102220954 A CN 102220954A CN 2010102582136 A CN2010102582136 A CN 2010102582136A CN 201010258213 A CN201010258213 A CN 201010258213A CN 102220954 A CN102220954 A CN 102220954A
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Abstract
The invention provides a sealed type electric compressor capable of switching stator windings of a motor in a way combining serial connection and parallel connection. The sealed type electric compressor is characterized in that the compressor comprise nine conductive pins and six windings equipped inside a sealed container and forming the windings of the motor, wherein, three of the six windings each have one end connected with three of the nine conductive pins. Inside the sealed container, the other ends of the three windings are combined into one and form a neutral point. The rest three windings are respectively connected with two of the rest six conductive pins.
Description
Technical field
The present invention relates to the sealed electrical compressor that drives by the DC brushless motor, and the present invention is suitable for using refrigerating circulatory devices such as the air conditioner, refrigeration refrigerated warehouse, cold machine application product, heat-pump hot water supply apparatus of HFC refrigeration agent or natural refrigerant.
Background technique
When energy-conservationization of the systems such as room air conditioner that realize being equipped with the sealed electrical compressor that drives by the DC brushless motor, the high efficiency under the low-speed conditions more than running time becomes important problem in actual use.
As the technology that is suitable for this kind purposes, the known method that patent documentation 1 is arranged.Thus, following record in the paragraph (0004) of reference Fig. 9.That is, " Fig. 9 is the output characteristics figure of DC brushless motor, (a) the volume number output characteristics for a long time of expression torque constant winding when big, and (b) the expression torque constant hour is the volume number output characteristics after a little while of winding.Among the figure, transverse axis is represented the rotating speed of electric rotating machine, the longitudinal axis is represented the output of electric rotating machine, the curve that solid line is represented is for linking the curve of same efficient point, as known in the figure,, volume number big at torque constant for a long time, maximum efficiency areas is present in the low rotary area of regulation, little at torque constant, the volume number after a little while, maximum efficiency areas is present in the high rotary area of regulation ".
Patent documentation 1: Japanese kokai publication hei 6-205573 communique
As common design of plant,, then need the maximum efficiency areas of corresponding design motor with low-speed conditions (or high-speed condition) as if the efficient that will improve under the low-speed conditions (or high-speed condition).When carrying out such design, there are the following problems: under high-speed condition (or low-speed conditions), the efficient of motor can not be used in maximum efficiency areas, the worst situation is to be difficult to self drive motor.That is, be difficult to design the motor that is suitable for the low-speed running condition and runs up these both sides of condition.
Therefore, shown in patent documentation 1 in the past, as the control mode of DC brushless motor, proposing has the technology of coming the staor winding of switching motor with series connection and parallel connection.
Yet, in patent documentation 1, though staor winding is according to the change in rotational speed of rotor and freely switch the concrete configuration of unexposed terminal or structure etc.That is, needing increases the lead-in wire radical of drawing from staor winding, yet can not realize in the structure of existing sealed electrical compressor.
Summary of the invention
The objective of the invention is to, realizing in sealed electrical compressor can be with the concrete structure of the staor winding of series connection and switching motor in parallel.Another purpose is, provides a kind of and is suitable for the low-speed running condition with respect to compressor rotary speed and these both sides' of condition that run up refrigerating circulatory device.
The present invention who is used to finish above-mentioned purpose is sealed electrical compressor, possesses in seal container: compression mechanical part; Be used to drive the DC brushless motor of this compression mechanical part; Be used for bent axle that the rotating force of this motor is transmitted to described compression mechanical part, described sealed electrical compressor is characterised in that,
Have nine conductive pins of powering to described motor.
In addition, the present invention who is used to finish above-mentioned purpose is sealed electrical compressor, possesses in seal container: compression mechanical part; Be used to drive the DC brushless motor of this compression mechanical part; Be used for bent axle that the rotating force of this motor is transmitted to described compression mechanical part, described sealed electrical compressor is characterised in that to possess:
Nine conductive pins of powering to described motor;
Be provided in the described seal container and constitute six windings of the winding of described motor,
Each end of three windings in described six windings is connected with three conductive pins in described nine conductive pins, and in described seal container, the other end of described three windings connects into one and formation neutral point,
Connect in remaining six conductive pins each two by each winding in remaining three windings.
The invention effect
According to the present invention, can realize sealed electrical compressor with the staor winding of series connection and switching motor in parallel.In addition, can provide a kind of and be suitable for the low-speed running condition with respect to compressor rotary speed and these both sides' of condition that run up refrigerating circulatory device.
Description of drawings
Fig. 1 is the stereogram of lid of the sealed electrical compressor of the first embodiment of the present invention.
Fig. 2 is the sectional view of the sealed electrical compressor of the expression first embodiment of the present invention.
Fig. 3 (a) is the staor winding connection diagram of sealed electrical compressor in the past.(b) be the staor winding connection diagram of the sealed electrical compressor of embodiments of the invention.
Fig. 4 is the system construction drawing of an expression example of the present invention.
Fig. 5 (a) is the stereogram of lid of the sealed electrical compressor of the second embodiment of the present invention.(b) be sectional view when packing this lid into sealed electrical compressor.
Fig. 6 is the stereogram of lid of the sealed electrical compressor of the third embodiment of the present invention.
Fig. 7 is the stereogram of lid of the sealed electrical compressor of the fourth embodiment of the present invention.
Fig. 8 (a) is the stereogram of lid of the sealed electrical compressor of the fifth embodiment of the present invention.(b) be the cluster connection diagram of the sixth embodiment of the present invention.
Fig. 9 is the stereogram of lid of the sealed electrical compressor of the sixth embodiment of the present invention.
Figure 10 (a) is the stereogram of lid of the sealed electrical compressor of the seventh embodiment of the present invention.(b) be the enlarged view of the sealed wiring seat of the seventh embodiment of the present invention.
Figure 11 is the stereogram of lid of the sealed electrical compressor of the eighth embodiment of the present invention.
Figure 12 is the figure of the relation of expression output of embodiments of the invention and rotating speed.
Symbol description:
1 seal container
The 1A cylindrical shell
The 1B lid
Body at the bottom of the 1C
The 1D suction pipe
The 1E spraying pipe
The 1x neutral point
2 compression mechanical parts
3 stators
The 3A lead-in wire
The 3B stator core
The 3C staor winding
The 3D cluster
4 rotors
The 4A balancer weight
The 4B pin
The 4C rotor core
5 sealed wiring seats
The 5A conductive pin
The 5B conductive member
The 5C insulating material
The 5D seal
6 bent axles
7 fixed eddy plates
The 7A suction port
The 7B ejiction opening
8 circle round whirlpool dishes
9 frameworks
10 Euclidean rings
11 supplementary bearing support units
12 supplementary bearings
20 transducers
30 winding change-over switch
The 30x neutral point
50 control gear
100 first heat exchangers
150 decompressors
200 second heat exchangers
Embodiment
Below, use accompanying drawing, the mode of execution of sealed electrical compressor of the present invention is described.Prosign among each figure is represented same parts or is equivalent to same parts.
[embodiment 1]
Fig. 1 is the stereogram of lid 1B of the sealed electrical compressor of expression one embodiment of the invention.Fig. 2 is the longitudinal sectional view of compressor shown in Figure 1.Present embodiment is the scroll compressor of Fig. 1, closed type shown in Figure 2, but this illustrates as an example, is not limited to scroll compressor, also can be other compressor.
Seal container 1 comprises cylindrical shell 1A, lid 1B, end body 1C.In this seal container 1,, form the support unit of bent axle 6 by fixed frames 9 such as welding or shrink fit.Above-mentioned parts are called the main bearing support unit.
The lower end of bent axle 6 arrives the Ji Youchu of the bottom of seal container 1, by being fixed in supplementary bearing support unit 11 in the seal container 1 and welding or bolton by welding or shrink fit in 12 supportings of supplementary bearing of this supplementary bearing support unit 11.
Thus, bent axle 6 can be stablized rotation.
Between the fixed eddy plate 7 on this framework 9, sandwich the compression mechanical part 2 that circles round whirlpool dish 8 and constitute eddy type at framework 9 and bolton.The circle round scrollwork of whirlpool dish 8 and the scrollwork of fixed eddy plate 7 is meshing with each other.The whirlpool dish 8 that circles round is driven by bent axle 6.Specifically, the eccentric part of bent axle 6 is embedded in the back side of the scrollwork of the whirlpool dish 8 that circles round, and carries out the mode of revolution motion not carry out spinning motion and carries out the circular orbit motion.Coil 8 rotation by the whirlpool that prevents from based on the anti-locking mechanism of rotation that is arranged on Euclidean ring 10 between circle round whirlpool dish 8 and the framework 9 etc. (key of Euclidean ring 10, the keyway of whirlpool dish 8, the keyway of framework 9 circle round) to circle round.
The axial region that circles round that is positioned at bent axle 6 upper ends is embedded in circle round the bearing and carry out eccentric drive of circling round that is provided with on the whirlpool dish 8, thereby make the whirlpool dish 8 that circles round carry out the circular orbit motion, thus, the pressing chamber that is formed by the scrollwork of the scrollwork of fixed eddy plate 7 and the whirlpool dish 8 that circles round moves to central part from outer circumferential side, and the while, its volume dwindled.
Thus, the suction port 7A on the top of suction pipe 1D outside leading to seal container 1 and fixed eddy plate 7 sucks and compression refrigeration gas.Becoming the above refrigerant gas of authorized pressure sprays in seal container 1 from the ejiction opening 7B of the central part of fixed eddy plate 7.
It in the seal container 1 compressor by the so-called hyperbaric chamber type that is full of of refrigeration agent of ejection pressure.Refrigeration agent in the seal container 1 sprays to the circulation that connects from spraying pipe 1E.Then, in refrigeration cycle, circulate, return suction pipe 1D, carry out with cocycle repeatedly.
Upper and lower end parts at rotor 4 is provided with the fastening balancer weight 4A by pin 4B, and thus, rotor 4 and bent axle 6 stably rotate, thereby can make the whirlpool dish 8 that circles round stably carry out the circular orbit motion.
As everyone knows, the inwardly square front end in the footpath of each tooth is formed with along the outer circumferential face of rotor 4 and expands the tooth front end of opening.Above-mentioned notch is used to take in staor winding 3C.Utilize the space of notch (not shown), on each tooth,, form the magnetic pole of stator 3 by so-called concentrated winding mode thus, and constitute the motor of four utmost points, six grooves across directly the reel staor winding 3C of two groups of U phases, V phase, W phase of insulating paper (not shown).
In addition, 3A is the line that is used for providing to motor electric power for lead-in wire.This lead-in wire 3A connects with the sealed wiring seat 5 that is used for being connected with the power supply of the outside of seal container 1.Connection is undertaken by the cluster 3D as connector.
Draw nine lead-in wire 3A from staor winding to the compression mechanical part both sides, guide to the top of compression mechanical part 2 by cylindrical shell 1A, the framework 9 of seal container 1 and the lead-in wire 3A steering channel (not shown) that is arranged on the fixed eddy plate 7, and be connected with the conductive pin 5A of the sealed wiring seat 5 that on lid 1B, is provided with respectively.5A powers to motor from this conductive pin.
The connection diagram of Fig. 3 (a) expression staor winding 3C that is connected in parallel in the past, the series, parallel of Fig. 3 (b) expression embodiments of the invention switches the connection diagram with staor winding 3C.
In the mode in the past shown in Fig. 3 (a), independently winding is six, each group (U1, U2), (V1, V2) of first each winding (U2, V2, W2) and these two windings of second each winding (U1, V1, W1), (W1, W2) are connected in parallel respectively with respect to the neutral point 1x of black circle expression, and constitute U phase, V phase, W phase respectively.The lead-in wire 3A of motor is for respectively drawing one three mutually from U phase, V phase, W.
In the embodiments of the invention shown in Fig. 3 (b), independently winding is six, and three windings are connected (U2, V2, W2) separately with neutral point 1x.Be referred to as first each winding.With above-mentioned different be to have the winding (U1, V1, W1) that is not connected with neutral point 1x.Be referred to as second each winding.Described each each winding (U2, V2, W2), (U1, V1, W1) are in pairs.The first winding group who is connected with described neutral point 1x connects into parallel connection or series connection with the second winding group who is not connected with neutral point by winding change-over switch 30 (Fig. 4).By above-mentioned any linkage structure Driven Compressor.
In parallel, series connection is switched with motor lead line 3A need respectively draw three in the mode that is referred to as 5A1～5A3,5A4～5A6,5A7～5A9 from each of U phase, V phase, W phase, and total need nine.
At this, in the sealed electrical compressor of present embodiment, lid 1B is a ball shape as Fig. 1, Fig. 2, and is provided with three sealed wiring seats 5 that possess three conductive pin 5A.In the present embodiment,, therefore can directly be suitable for, in the assembling of both having deposited, only sealed wiring seat 5 is set and get final product with extention because lid 1B is the shape same with existing structure.In addition, with respect to the existing lid 1B that is provided with a sealed wiring seat 5, the lid 1B that is provided with the present embodiment of three sealed wiring seats 5 guarantees endurance to the pressure that acts on lid 1B repeatedly by forming ball shape.
Fig. 4 represents an example of the system construction drawing of present embodiment.
Sealed electrical compressor is by transducer 20 control rotating speeds.And, also possesses the winding change-over switch 30 that under the effect of relay, moves, and winding change-over switch 30 is provided between transducer 20 and the compressor 30, thereby according to operating condition the staor winding 3C of the motor of compressor is switched to serial or parallel connection by this winding change-over switch 30.Winding change-over switch 30 is by possessing the structure of portion's formation neutral point 30x within it with compressor combination.So long as those skilled in the art just can conceive and constitute this structure as the internal structure of winding change-over switch 30 without difficulty.
This switching is undertaken by control gear 50.The signal of representing by wave-like line among the figure from control gear 50 switches the relay in the winding change-over switch 30, thereby whether control constitute neutral point in inside.Control gear 50 is for example controlled winding change-over switch 30 based on the motor speed information of collecting, thus, and the switching that is connected in parallel and is connected in series of control staor winding.In addition, as another example, control gear 50 keeps the Image Data based on the efficient of the output-rotating speed of motor, and based on these Image Data, control is switched.
Draw nine conductive pin 5A from seal container 1, be 5A1～5A9.Suitably decision is wound in one with which three and constitutes a wiring base 5 and get final product.For example, the mode with (5A1-5A4-5A7), (5A2-5A5-5A8), (5A3-5A6-5A9) is formed on the structure that respectively disposes U, a V, W on the wiring base.Easy like this understanding intuitively.And for example, forming a wiring base in the mode of (5A1-5A2-5A3), (5A4-5A5-5A6), (5A7-5A8-5A9) all is that U phase, another wiring base all are the V phase, another wiring base all is the structure of W phase again.So also understand intuitively easily.In any case,, importantly increased the number of pin, therefore understood easily as long as fastening to determine how to perform with the pass of winding change-over switch 30 sides.
In addition, constitute refrigeration cycle by first heat exchanger 100 of upside among compressor, the figure, second heat exchanger 200 of downside, the decompressor 50 that is provided between them.In addition, under the situation of carrying out heat dehumidifying again, for example first heat exchanger 100 is provided in the indoor set,, and between these two-part, sets throttling arrangement first heat exchanger, 100 separated into two parts.
(a) expression structural drawing that staor winding 3C is connected in parallel, (b) expression structural drawing that staor winding 3C is connected in series.
During series connection, U1 and U2 connect in the same manner with word, and V, W are too.Relative therewith, situation in parallel is with different shown in Fig. 3 (a).
In being connected in parallel of Fig. 3 (a), though only show a black circle, neutral point 1x of this expression first each winding (U2, V2, W2) is consistent with the neutral point 1x of second each winding (U1, V1, W1).
In being connected in parallel of Fig. 4 of a side (a), represent a neutral point 1x by the black circle at the center of seal container 1.Its neutral point 1x in the structure of motor, being provided with.Another neutral point 1x is for being formed at the neutral point 30x on circuit structure in winding change-over switch 30.Therefore, though two neutral point 1x are inconsistent, become and the same structure that is connected in parallel of Fig. 3 (a).
So, possess nine conductive pins and constitute six windings of motor winding and following formation.Promptly, each end of three windings (U2, V2, W2) in six windings is connected with three conductive pins (being 5A3,5A6,5A9 in the drawings), in seal container, make the other end of these three windings connect into one and constitute neutral point 1x, and connect each two (being 5A1-5A2,5A4-5A5,5A7-5A8 in the drawings) in remaining six conductive pins (be 5A1,5A4,5A7,5A2,5A5,5A8 in the drawings) by remaining three each windings (U1, V1, W1).
As shown above, by winding change-over switch 30 is set, and can according to operating condition the staor winding 3C of the motor of compressor be switched to series connection and in parallel between transducer 20 and compressor by winding change-over switch 30.
When the volume number of the winding of stator 3 was n, in being connected in parallel of (a), it was n that the volume of each phase is counted Np, and in being connected in series of (b), it is 2n that the volume of each phase is counted Ns, and subscript p is first letter in parallel, and s is first letter of series connection.Below identical.Because torque constant is proportional with each volume number mutually, so the torque constant Kts when being connected in series is two times of torque constant Ktp when being connected in parallel.In addition, when being connected in parallel and when being connected in series, when the electric current that needs in order to obtain torque T was respectively Ip and Is, electric current I p, Is obtained by mathematical expression (1), (2).
Ip＝T/Ktp＝T/(Kts/2)＝2Is …(1)
Is＝T/Kts …(2)
In addition, be r at the resistance of a winding, when being connected in parallel and the resistance when being connected in series when being Rp and Rs, shown in mathematical expression (3), (4).
Rp＝r/2 …(3)
Rs＝2r …(4)
When therefore, being connected in parallel and the copper loss Pcp when being connected in series and Pcs shown in mathematical expression (5), (6).
Pcp＝Ip
2Rp＝(2Is)
2r/2＝2Is
2r …(5)
Pcs＝Is
2Rs＝2Is
2r …(6)
As shown above, even switch winding, copper loss does not change yet, for the electric current that flows through a phase, and 1/2 during for being connected in parallel of (a) during being connected in series (b).
Therefore, be the rotating speed (being motor speed), the longitudinal axis of compressor during at transverse axis for output, output has two crests with respect to rotating speed, when representing by isohypse, as shown in figure 12.The hatched example areas L in left side represents the high efficiency region in the low speed rotation, and the hatched example areas H on right side represents the high efficiency region in the high speed rotating.
Promptly, even the maximum efficiency areas of design corresponding motor with low-speed conditions in order to improve efficient under the low-speed conditions, as long as in this case be connected in series the design and under high-speed condition for being connected in parallel, just the efficient of motor can be used in maximum efficiency areas.
In addition, when being connected in series, as mentioned above, compare with situation about being connected in parallel, the electric current of motor is 1/2, therefore can improve the efficient of the transducer 20 of driving, thereby improves the efficient of system.
So, can be with the staor winding of series connection and switching motor in parallel.And, by when the low-speed running for being connected in series when running up to being connected in parallel, can realize being suitable for the low-speed running condition and these both sides' of condition that run up compressor with respect to compressor rotary speed.And then, can provide a kind of suitable low-speed running condition and run up these both sides of condition, be the high refrigerating circulatory device of both sides' efficient.
Make low speed, during at a high speed for different performance, be meant situation about under the regulation rotating speed of motor, switching.When carrying out this switching, for example,, when low speed is below the 4000rpm, has more than at a high speed for 3000rpm when overlapping, can reduce useless switching and make whole best for room air conditioner.In addition, about above-mentioned efficient Image Data, under the situation of room air conditioner, basic running model be winter rated condition, winter intermediate conditions, summer rated condition, summer these four conditions of intermediate conditions.Owing under rated condition, can under intermediate conditions, can therefore can switch like this corresponding to running up corresponding to low-speed running.
Room air conditioner also can be thought roughly running all the time, owing to turn round in a year and a day, so its Environmental Conditions changes greatly.Therefore, estimate by being called as year index of consumption efficiency APF.Under the situation of room air conditioner, no matter switch with in regulation rotating speed, the running model any, save on the energy this point all very effective.
In addition, heat-pump hot water supply apparatus, refrigerated warehouse etc. also are fit to as same equipment.If heat-pump hot water supply apparatus, then when boiling mode, can switch to and run up, when the insulation pattern, can switch to low-speed running, if refrigerated warehouse, then can switch to temperature and keep constant low-speed mode at the night that door does not does not open and close, therefore because door opens and closes, can switch to storehouse temperature is cooled to fast mode till constant by day.The constant equipment of the said equipment and Environmental Conditions such as washing machine or sweeper is different, that is, and and with only to switch series-parallel equipment under regulation rotating speed, operation mode different.
Above structure goes for being equipped with all devices of the sealed electrical compressor that drives by the DC brushless motor.
[embodiment 2]
Fig. 5 is the stereogram of lid 1B of the sealed electrical compressor of one embodiment of the invention.
Basic condition is shown in explanation among the embodiment 1.The lid 1B of explanation is under the situation of ball shape and the structure that is provided with three sealed wiring seats 5 in embodiment 1 (Fig. 1), the conductive pin 5A of sealed wiring seat 5 with respectively along the form of the sphere of lid 1B and from the center of lid 1B to the oblique form setting of periphery inclination, so the Plant reconstruction plant modernization of operations such as excitation in the compressor assembling operation or commercial test becomes on a large scale.
In addition,, therefore may rigidity reduce, thereby the endurance of the pressure of effect is repeatedly reduced owing to increased by two sealed wiring seats 5 with respect in the past lid 1B.
Therefore, in second mode of execution, it is that the thickness of slab of flat condition and lid 1B self thickens structure more than 27% with respect in the past thickness of slab that lid 1B is formed upper surface, the face that is provided with of sealed wiring seat 5 meets at right angles with respect to the direction of bent axle 6, and the conductive pin 5A of sealed wiring seat 5 is parallel to the direction of bent axle 6 respectively.Compare with the thickness of side face 1A for lid 1B, with in the past about 1.1 become about 1.4 with on guarantee intensity, even make and to increase by two sealed wiring seats 5, the intensity of lid 1B does not die down yet.Above-mentioned 27% is 1.4/1.1.
By forming this structure, the installation of cluster 3D becomes easily, and is preferred in assembling.In addition, can guarantee endurance with respect to the pressure of lid 1B, and the Plant reconstruction plant modernization that can alleviate the operation of excitation or commercial test etc. simultaneously.In addition, because simple shape, so the Mold Making of the punching press of lid 1B and operation also become easy.
[embodiment 3]
Fig. 6 is the stereogram of lid 1B of the sealed electrical compressor of one embodiment of the invention.
Basic condition is shown in explanation among the embodiment 1.The lid 1B of explanation is under the situation of ball shape and the structure that is provided with three sealed wiring seats 5 in embodiment 1 (Fig. 1), the conductive pin 5A of sealed wiring seat 5 with respectively along the form of the sphere of lid 1B and from the center of lid 1B to the oblique form setting of periphery inclination, so the Plant reconstruction plant modernization of operations such as excitation in the compressor assembling operation or commercial test becomes on a large scale.
Therefore, in the 3rd embodiment, lid 1B is based on ball shape, and is provided with the plane of stretching out from ball shape, sets out the face that is provided with of sealed wiring seat 5 thus.Make this that face is set and meet at right angles, make the conductive pin 5A of sealed wiring seat be parallel to the direction of bent axle 6 respectively with respect to bent axle 6 directions.
By forming this structure, the installation of cluster 3D becomes easily, and is preferred in assembling.In addition, improve rigidity and can guarantee endurance with respect to the pressure of lid 1B and the Plant reconstruction plant modernization that can greatly alleviate operations such as excitation or commercial test simultaneously by extension.
[embodiment 4]
Fig. 7 represents the stereogram of lid 1B of the sealed electrical compressor of one embodiment of the invention.
Basic condition is shown in explanation among the embodiment 1.The sealed electrical compressor of present embodiment is identical with embodiment 2, lid 1B is based on ball shape, the face that is provided with of sealed wiring seat 5 meets at right angles with respect to bent axle 6 directions, the conductive pin 5A of sealed wiring seat 5 is parallel to the direction of bent axle 6 respectively, and the conductive pin 5A of sealed wiring seat 5 is one group and five with four is one group and makes up.
In embodiment 1,2,, therefore need connect at three positions because the terminal of lead-in wire 3A is cluster 3D, but according to this structure, owing to can make connection part become two, therefore situation about connecting with respect to three positions can improve the operation when assembling.
[embodiment 5]
Fig. 8 (a) and (b) are represented the stereogram of lid 1B of the sealed electrical compressor of one embodiment of the invention.
Basic condition is shown in explanation among the embodiment 1.With embodiment 1 in the same manner, the sealed electrical compressor lid 1B of present embodiment is for based on the shape of ball shape and be provided with three structures that possess the sealed wiring seat 5 of three conductive pin 5A.
If cluster 3D is made of three good looks of visuognosis such as (white, black, ashes), then can avoid connecting with respect to the mistake of above-mentioned three sealed wiring seats 5.
In addition,, also exist to make two cluster color differences, make another size diverse ways as other method.About this, below describe.
Make a sealed wiring seat 5 in three sealed wiring seats conductive pin 5A diameter for the different diameter of diameter of the conductive pin 5A of other two sealed wiring seats 5.In Fig. 8, different with the diameter of the conductive pin 5A of other wiring base 5 apart from the conductive pin of suction pipe 1D wiring base 5 (z) farthest, the diameter of the conductive pin of wiring base 5 (z) is thick.
From being connected of the lead-in wire 3A of stator 3 and sealed wiring seat 5 (connection in the seal container 1) and from the distribution of coiling COMM communication 30 and sealed wiring seat 5 be connected (connection seal container 1 outside) middle use cluster the time, the cluster 3D that uses in the connection of the identical sealed wiring seat 5 of the diameter of two conductive pin 5A is different with the black color for for example white, the different cluster 3D (z) of diameter of splicing ear (not shown) in the connection of the different sealed wiring seat 5 (z) of the diameter of conductive pin 5A use any in for example white or black.
So, operation raising as described below.On the thick sealed wiring seat 5 (z) of conductive pin 5A, can only connect the cluster 3D (z) that thick conductive pin 5A uses, can not connect by mistake.For cluster 3D for the connection of two sealed wiring seats 5 of the equal diameters of guide finger 5A, because cluster 3D color difference and visuognosis raising.The sealed wiring seat that can connect any color on the cluster that thin conductive pin is used, owing to can not be connected by the sealed wiring seat 5 (z) thick with the diameter of remaining conductive pin 5A, the mistake in the time of therefore can preventing to connect operation connects.Present embodiment is an example with the cluster 3D of white and black, but other color combinations effect is also identical.
[embodiment 6]
Fig. 9 represents the stereogram of lid 1B of the sealed electrical compressor of one embodiment of the invention.
Basic condition is shown in explanation among the embodiment 1.In the sealed electrical compressor of present embodiment,, nine conductive pin 5A constitute sealed wiring seat 5 so that being concentrated into the form of a seal 5D.The sealed wiring seat 5 of Fig. 8 etc. is the structure that imagination uses the cluster 3D of three three terminals to connect, and still uses the cluster 3D of nine terminals of special use by the configuration of change conductive pin 5A, connects and once just can finish, and therefore can improve operation.And, owing to also once finish the change of therefore also can simplifying working process to the weld job of the lid 1B of sealed wiring seat 5.
[embodiment 7]
The stereogram of the lid 1B of the sealed electrical compressor of Figure 10 (a) expression one embodiment of the invention, Figure 10 (b) are illustrated in the enlarged view of the last sealed wiring seat 5 that is provided with of lid 1B of Figure 10 (a).
Basic condition is shown in explanation among the embodiment 1.With in the past sealed electrical compressor in the same manner, the sealed electrical compressor of present embodiment is a purpose so that a sealed wiring seat 5 only to be set on lid 1B, the conductive pin 5A of a sealed wiring seat 5 is formed three terminals, on a conductive pin, have the structure of three contacts.
Terminal is for being that the conductive member 5B that the center keeps insulation distance by insulating material 5c and will have the tubular of electric conductivity simultaneously carries out overlapping structure with conductive pin 5A.By using the splicing ear of sealing wiring base 5 special uses, the wiring operation became with identical in the past terminal once inserts operation, with respect to embodiment 1 to 5, inserts the minimizing of operation number, the operation property improvement of assembling, and can reduce the Plant reconstruction plant modernization of operation.
[embodiment 8]
Figure 11 represents the longitudinal sectional view of the sealed electrical compressor of one embodiment of the invention.
Basic condition is shown in explanation among the embodiment 1.The sealed electrical compressor of present embodiment is for being provided with the structure of sealed wiring seat 5 on the side face of the cylindrical shell 1A that constitutes seal container 1.Thus, need not the lead-in wire 3A of the stator 3 lead-in wire 3A steering channel by framework 9, fixed eddy plate 7 is pulled up to the top of compression mechanical part 2, and can improve the wiring operation, and can shorten lead-in wire 3A, can realize that therefore cost reduces.Though do not express in the drawings, the specification of sealed wiring seat 5 can be made of in embodiment 1 to 7 the specification any.
Claims (16)
1. a sealed electrical compressor possesses in seal container: compression mechanical part; Be used to drive the DC brushless motor of this compression mechanical part; Be used for bent axle that the rotating force of this motor is transmitted to described compression mechanical part, described sealed electrical compressor is characterised in that,
Have nine conductive pins of powering to described motor.
2. sealed electrical compressor according to claim 1 is characterized in that,
In described seal container, be provided with three sealed wiring seats with three conductive pins.
3. sealed electrical compressor according to claim 1 is characterized in that,
In described seal container, be respectively arranged with each one of sealed wiring seat with five conductive pins and sealed wiring seat with four conductive pins.
4. sealed electrical compressor according to claim 2 is characterized in that,
In three sealed wiring seats with three conductive pins, the diameter of the conductive pin of at least one sealed wiring seat is different with the diameter of the conductive pin of other two sealed wiring seats.
5. sealed electrical compressor according to claim 1 is characterized in that,
In described seal container, be provided with sealed wiring seat with nine conductive pins.
6. sealed electrical compressor according to claim 1 is characterized in that,
In described seal container, be provided with the sealed wiring seat, be provided with three conductive pins that on butt, have three contacts in the sealing wiring base.
7. according to each described sealed electrical compressor in the claim 1～6, it is characterized in that,
Upper surface at seal container is provided with the sealed wiring seat.
8. according to each described sealed electrical compressor in the claim 1～6, it is characterized in that,
Side face at seal container is provided with the sealed wiring seat.
9. a sealed electrical compressor possesses in seal container: compression mechanical part; Be used to drive the DC brushless motor of this compression mechanical part; Be used for bent axle that the rotating force of this motor is transmitted to described compression mechanical part, described sealed electrical compressor is characterised in that to possess:
Nine conductive pins of powering to described motor;
Be provided in the described seal container and constitute six windings of the winding of described motor,
Each end of three windings in described six windings is connected with three conductive pins in described nine conductive pins, and in described seal container, the other end of described three windings connects into one and formation neutral point,
Connect in remaining six conductive pins each two by each winding in remaining three windings.
10. refrigerating circulatory device comprises: the described sealed electrical compressor of claim 9, first heat exchanger, decompressor, second heat exchanger, and described refrigerating circulatory device is characterised in that to possess:
Control the transducer of the rotating speed of described sealed electrical compressor;
Be provided between described transducer and the described sealed electrical compressor and can constitute the winding change-over switch of neutral point in inside;
Whether control constitutes the control gear of neutral point in described winding change-over switch,
Described control gear switches being connected in series and being connected in parallel of described staor winding, constitute described neutral point and the staor winding of described motor is connected in parallel with inside at described winding change-over switch, perhaps, do not constitute described neutral point and the staor winding of described motor is connected in series in the inside of described winding change-over switch.
11. refrigerating circulatory device according to claim 10 is characterized in that,
When described motor low speed rotation, form and be connected in series,
When described motor high speed rotating, form and be connected in parallel.
12. refrigerating circulatory device according to claim 10 is characterized in that,
Formation is connected in series when described motor is the rotating speed of regulation,
When described motor is bigger than the rotating speed of described regulation, form and be connected in parallel.
13. refrigerating circulatory device according to claim 10 is characterized in that,
Being that 4000rpm keeps the state that is connected in series when following and is that 3000rpm keeps the mode of the state that is connected in parallel to constitute room air conditioner when above at described motor at described motor.
14. refrigerating circulatory device according to claim 10 is characterized in that,
Described control gear keeps the Image Data based on the efficient of the output-rotating speed of described motor, and based on described Image Data, switches being connected in series and being connected in parallel of described staor winding.
15. refrigerating circulatory device according to claim 10 is characterized in that,
Described control gear is connected in series and forms the mode that is connected in parallel constitute room air conditioner under rated condition to form under intermediate conditions.
16. sealed electrical compressor according to claim 7 is characterized in that,
The conductive pin of sealed wiring seat is provided with Chengdu and bent axle, and that direction is set is parallel.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010094592A JP2011229221A (en) | 2010-04-16 | 2010-04-16 | Hermetic type electric compressor and refrigeration cycle device |
| JP2010-094592 | 2010-04-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102220954A true CN102220954A (en) | 2011-10-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102582136A Pending CN102220954A (en) | 2010-04-16 | 2010-08-18 | Sealed type electric compressor, refrigeration cycle device |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2011229221A (en) |
| KR (1) | KR101179349B1 (en) |
| CN (1) | CN102220954A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104253500A (en) * | 2013-06-26 | 2014-12-31 | 三菱电机株式会社 | Three-phase Motor, Enclosed Compressor And Refrigeration Cycle Device |
| CN109496251A (en) * | 2016-07-29 | 2019-03-19 | 大金工业株式会社 | The manufacturing method of compressor assembly, compressor and compressor |
| CN110998196A (en) * | 2017-08-08 | 2020-04-10 | 三菱电机株式会社 | Outdoor unit of air conditioner |
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| JP5464224B2 (en) * | 2012-03-14 | 2014-04-09 | 株式会社安川電機 | Motor drive device and vehicle |
| CN103439061B (en) * | 2013-07-30 | 2016-08-10 | 张家港市格致电器制造有限公司 | A kind of seal wiring seat air tightness detection apparatus |
| CN104348292B (en) | 2013-07-31 | 2017-04-12 | 珠海格力电器股份有限公司 | Wiring mechanism, permanent-magnetic adjustable-speed motor, and centrifugal refrigeration compressor |
| JPWO2019031081A1 (en) * | 2017-08-07 | 2020-02-27 | 三菱電機株式会社 | Air conditioner |
| JP6746000B2 (en) * | 2017-08-09 | 2020-08-26 | 三菱電機株式会社 | Compressor and refrigeration cycle device |
| JP6987591B2 (en) | 2017-10-05 | 2022-01-05 | 三菱重工サーマルシステムズ株式会社 | Sealed compressor |
| WO2022003866A1 (en) * | 2020-07-01 | 2022-01-06 | コアレスモータ株式会社 | Rotating electrical machine and electric vehicle |
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Also Published As
| Publication number | Publication date |
|---|---|
| KR101179349B1 (en) | 2012-09-03 |
| JP2011229221A (en) | 2011-11-10 |
| KR20110115943A (en) | 2011-10-24 |
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Application publication date: 20111019 |