Double-motor shell and generator set

Abstract

The utility model provides a dual-motor housing and a generator set, the dual-motor housing comprises a housing body, the housing body is provided with two accommodating cavities and two through holes, the two accommodating cavities are arranged side by side, and each through hole is correspondingly communicated with one accommodating cavity. The containing cavity comprises a first cavity body and a second cavity body which are communicated, the first cavity body is provided with a first air inlet hole, and the second cavity body is in a volute shape and provided with an exhaust hole. The two independent containing cavities are designed in the shell body, a set of impeller and motor body can be independently installed in each containing cavity, and the first air inlet hole and the exhaust hole of each containing cavity do not interfere with each other, so that the cooling effect on the motor body is improved. Meanwhile, due to the fact that the second cavity is in the volute shape, when the impeller operates in the second cavity, disturbance and noise of airflow can be reduced, it is ensured that the airflow cannot deviate in the process of flowing to the exhaust holes, the exhaust effect of the double-motor shell is improved, and then the air inlet effect is correspondingly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of generator set, concretely relates to a double motor shell and generator set. BACKGROUND

[0002] The existing frequency conversion generator set usually adopts single impeller structure, and the frequency conversion generator set with single impeller structure generally installs the impeller and the generator on the front side of the engine, drives the impeller high-speed rotation through the crankshaft of the engine, and thus realizes the cooling of the generator, cylinder body and cylinder head by sucking the airflow into the air scoop. Since the engine generates more heat, most of the airflow sucked into the air scoop is used to cool the engine, therefore, the impeller usually adopts centrifugal impeller, that is, axial air inlet and radial air outlet. However, only a small part of the airflow is used to cool the generator, and thus the cooling effect of the generator is poor and the cooling efficiency is low. SUMMARY

[0003] In view of the defects in the prior art, the utility model aims at providing a double motor shell and generator set, which can independently install two sets of impellers and generators to improve the cooling effect of the generator.

[0004] In order to achieve the above-mentioned purpose, the utility model provides a double motor shell, which comprises a shell body, the shell body is provided with two accommodating cavities and two through holes, the two accommodating cavities are arranged side by side, and each through hole is connected with one accommodating cavity; the accommodating cavity comprises a first cavity and a second cavity connected with each other, the first cavity is provided with a first air inlet hole, the second cavity is in the shape of a volute, and the second cavity is provided with an air outlet hole.

[0005] Preferably, the first air inlet hole is arranged on the side of the first cavity away from the second cavity.

[0006] Preferably, the second cavity is provided with a second air inlet hole, and the second air inlet hole is arranged on the side of the second cavity away from the first cavity.

[0007] Preferably, the air outlet hole is arranged above the second cavity.

[0008] Preferably, the shell body is provided with supporting legs and bottom legs.

[0009] Preferably, the shell body comprises a first shell and a second shell that are buckled together, the first air inlet hole is arranged on the first shell, the second air inlet hole and the through hole are arranged on the second shell, and the air outlet hole is formed after the first shell and the second shell are connected.

[0010] Preferably, the first shell is provided with at least two first positioning holes, and the second shell is provided with at least two second positioning holes on a side of the second shell facing the first shell, each of the second positioning holes corresponding to one of the first positioning holes.

[0011] Preferably, a first end cover is arranged on a side of the second shell away from the first shell, and a reinforcing rib is arranged in the first end cover.

[0012] The utility model also provides a generator set which comprises the double-motor shell.

[0013] The utility model has the advantages of:

[0014] The utility model discloses a double-motor shell and a generator set, which comprises two independent accommodating cavities in the shell body, a group of impellers and motor bodies can be independently installed in each accommodating cavity, the first air inlet and the air outlet of each accommodating cavity do not interfere with each other, and therefore, the cooling effect of the motor body is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the specific embodiments of the utility model or the technical solutions in the prior art, the drawings needed in the specific embodiments or the prior art description will be briefly introduced below. In all the drawings, similar elements or parts are generally indicated by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0016] Figure 1 The structure schematic view of the double-motor shell provided by the utility model is shown in Fig. 1.

[0017] Figure 2 The structure schematic view of the first shell is shown in Fig. 2.

[0018] Figure 3 The structure schematic view of the second shell is shown in Fig. 3.

[0019] Figure 4 The structure schematic view of the second cavity is shown in Fig. 4.

[0020] Figure 5 The cross-sectional schematic view of the double-motor shell is shown in Fig. 5.

[0021] Figure 6 The structure schematic view of the other side of the second shell is shown in Fig. 6.

[0022] Reference signs:

[0023] 100, housing body; 101, containing cavity; 102, through hole; 103, first cavity; 104, second cavity; 105, first air inlet; 106, air outlet; 107, second air inlet; 108, supporting leg; 109, bottom leg; 110, first shell; 111, second shell; 112, first positioning hole; 113, second positioning hole; 114, first end cover; 115, reinforcing rib. DETAILED DESCRIPTION

[0024] The embodiments of the technical scheme of the utility model will be described in detail below with reference to the drawings. The following embodiments are only used to more clearly illustrate the technical scheme of the utility model, therefore only as an example, and cannot limit the protection scope of the utility model.

[0025] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in the present application should be understood as the usual meaning understood by the technical personnel in the field of the utility model.

[0026] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0027] In addition, the terms "first", "second", and the like are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. In the description of the utility model, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified and limited.

[0028] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0029] In the present application, unless specifically stated and limited otherwise, a first feature is "on" or "under" a second feature if the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature is "over", "above" and "on top of" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the first feature is higher in horizontal height than the second feature. The first feature is "under", "below" and "underneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the first feature is lower in horizontal height than the second feature.

[0030] As Figures 1-6 shown, in an embodiment of the utility model, provide a double motor shell, including shell body 100, shell body install on power main body (namely engine, the drawing does not show), shell body 100 is equipped with two containing cavity 101 and two through -hole 102, two containing cavity 101 side by side arrangement, every through -hole 102 corresponds to the communication one containing cavity 101, the shaft (the drawing does not show) can pass through through -hole 102 and extend into containing cavity 101. Containing cavity 101 includes the communication first chamber 103 and second chamber 104, first chamber 103 is equipped with first air inlet 105, second chamber 104 is volute, and second chamber 104 is equipped with exhaust hole 106. Specifically, motor body (namely generator, the drawing does not show) is installed in first chamber 103, and impeller (the drawing does not show) is installed in second chamber 104.

[0031] The double motor shell disclosed in the embodiment, by designing two independent containing cavities 101 in the shell body 100, a set of impellers and motor bodies can be independently installed in each containing cavity 101, and the first air inlet 105 and the exhaust hole 106 of each containing cavity 101 do not interfere with each other, thus improving the cooling effect of the motor body. During operation, the first air inlet 105 can suck the external airflow into the first chamber 103 and the second chamber 104, thereby cooling the motor body, and the cooled airflow can be discharged through the exhaust hole 106.

[0032] At the same time, since the second chamber 104 is volute, when the impeller operates in the second chamber 104, the disturbance and noise of the airflow can be reduced, ensuring that the airflow does not deviate during flowing to the exhaust hole 106, thereby improving the exhaust effect of the double motor shell, and accordingly improving the air intake effect.

[0033] In one embodiment, the first air inlet hole 105 is arranged on the side of the first cavity 103 away from the second cavity 104. Since the motor body is installed in the first cavity 103 and the impeller is installed in the second cavity 104, when the generator set is working, the high-speed rotation of the impeller will generate negative pressure in the first cavity 103 and the second cavity 104, thereby sucking the external airflow into the first air inlet hole 105. Since the motor body is located in the first cavity 103, the cooling airflow will continuously cool the stator of the motor body, and then be discharged through the second cavity 104 and the air outlet hole 106, thereby improving the cooling effect of the motor body and enabling the motor body to operate in a normal working condition.

[0034] In one embodiment, the second cavity 104 is provided with a second air inlet hole 107 arranged on the side of the second cavity 104 away from the first cavity 103. During the operation of the impeller, external airflow is also sucked into the second cavity 104 through the second air inlet hole 107, thereby improving the air intake and exhaust effect of the double-motor shell.

[0035] In one embodiment, the air outlet hole 106 is arranged above the second cavity 104. After the airflow in the second cavity 104 is discharged from the air outlet hole 106, it can cool other components of the engine set, thereby enabling the airflow to be fully utilized.

[0036] In one embodiment, the shell body 100 is provided with a support leg 108 and a bottom leg 109. The support leg 108 is designed to support other components of the generator set, facilitating the installation of other components. The bottom leg 109 is designed to provide better support for the double-motor shell.

[0037] In one embodiment, the shell body 100 includes a first shell 110 and a second shell 111 coupled together. The first air inlet hole 105 is arranged on the first shell 110, the second air inlet hole 107 and the through hole 102 are arranged on the second shell 111, and the air outlet hole 106 is formed after the first shell 110 and the second shell 111 are connected. By designing the shell body 100 as a split structure, it is convenient for molding and disassembling the impeller and the motor body.

[0038] Further, the first shell 110 is provided with two first positioning holes 112, and the side of the second shell 111 facing the first shell 110 is provided with two second positioning holes 113, each second positioning hole 113 corresponding to a first positioning hole 112. By installing a positioning pin (not shown in the figure) in the second positioning hole 113, the first shell 110 and the second shell 111 can be quickly aligned, thereby facilitating the quick assembly of the first shell 110 and the second shell 111.

[0039] In one embodiment, the second shell 111 is provided with a first end cover 114 on the side away from the first shell 110, and the first end cover 114 is provided with a reinforcing rib 115. A second end cover (not shown in the drawings) is arranged on the power body, and the second end cover cooperates with the first end cover 114. The inner cavity formed by the first end cover 114 and the second end cover is used to install the transmission mechanism. By designing the first end cover 114, the double-motor shell can be connected with the power body, and the transmission mechanism is also convenient to install to drive the impeller and the motor body in each accommodating cavity 101 to work.

[0040] The embodiment also provides a generator set comprising the double-motor shell. Since the double-motor shell is used, the generator set has the same working principle and technical effects as the double-motor shell in the above embodiment, and will not be described here.

[0041] In the specification of the utility model, a large number of specific details are explained. However, it can be understood that the embodiments of the utility model can be practiced without these specific details. In some examples, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of the specification.

[0042] Finally, it should be pointed out that: the above embodiments are only used to illustrate the technical solutions of the utility model, but not to limit them; although the utility model has been described in detail with reference to the above embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the above embodiments, or make equivalent replacement to part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model, and they should be covered in the scope of the claims and the specification of the utility model.

Claims

1. A dual motor housing characterized by, The shell body (100) is provided with two accommodating cavities (101) and two through holes (102), the two accommodating cavities (101) are arranged side by side, and each through hole (102) corresponds to one accommodating cavity (101); The accommodating cavity (101) comprises a first cavity (103) and a second cavity (104) in communication, the first cavity (103) is provided with a first air inlet hole (105), and the second cavity (104) is in the shape of a volute, and the second cavity (104) is provided with an air outlet hole (106).

2. The dual motor housing of claim 1, wherein, The first air inlet hole (105) is arranged on the side of the first cavity (103) away from the second cavity (104).

3. The dual motor housing of claim 2, wherein, The second cavity (104) is provided with a second air inlet hole (107), and the second air inlet hole (107) is arranged on the side of the second cavity (104) away from the first cavity (103).

4. The dual motor housing of claim 1, wherein, The air outlet hole (106) is arranged above the second cavity (104).

5. The dual motor housing of claim 1, wherein, The shell body (100) is provided with a supporting leg (108) and a bottom leg (109).

6. The dual motor housing of claim 3, wherein, The shell body (100) comprises a first shell (110) and a second shell (111) that are coupled together, the first air inlet hole (105) is arranged on the first shell (110), the second air inlet hole (107) and the through hole (102) are arranged on the second shell (111), and the air outlet hole (106) is formed after the first shell (110) and the second shell (111) are connected.

7. The dual motor housing of claim 6, wherein, The first shell (110) is provided with at least two first positioning holes (112), and the side of the second shell (111) facing the first shell (110) is provided with at least two second positioning holes (113), each second positioning hole (113) corresponding to one first positioning hole (112).

8. The dual motor housing of claim 6, wherein, The side of the second shell (111) away from the first shell (110) is provided with a first end cover (114), and the first end cover (114) is provided with a reinforcing rib (115) inside.

9. A generator set characterized by, The double-motor shell comprises the double-motor shell according to any one of claims 1-8.

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