Shell of conductive slip ring, conductive slip ring and household appliance

Abstract

The utility model discloses a conductive slip ring housing, conductive slip ring and household electrical appliance, the housing comprises a first housing, a second housing and a connecting ring, the first housing and the second housing are connected with each other so as to enclose a cavity therebetween, the first housing is provided with a positioning projection, the second housing is provided with a positioning groove, and the positioning projection is provided with a positioning groove. The positioning protrusions are inserted into the positioning grooves, and the first shell and the second shell are sleeved with the connecting ring. The shell is simple in structure and convenient to install.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of shell of electrically conductive slip ring, electrically conductive slip ring and household appliance. BACKGROUND

[0002] Some household appliances need to transmit signals and / or large current synchronously while rotating, at this time, electrically conductive slip ring is needed. Typically, such as hair dryer, electrically conductive slip ring is arranged at handle, allowing hair dryer body to move freely and be used at a convenient angle by user, while also transmitting current without twisting power cord.

[0003] The shell of electrically conductive slip ring is generally composed of a first shell and a second shell. In order to prevent the first shell and the second shell from separating during assembly, common methods include setting buckle structure, dispensing or ultrasonic welding. If buckle structure is used, it will increase the complexity of mold and increase cost. If dispensing process is used, it will increase the complexity of process and may cause glue overflow. If ultrasonic welding is used, it will increase equipment investment on the one hand and may also damage the shell of electrically conductive slip ring on the other hand. SUMMARY

[0004] To solve the above technical problems, the utility model provides an improved shell of electrically conductive slip ring, which is relatively simple in structure and low in use cost.

[0005] The embodiment also provides an electrically conductive slip ring and a household appliance, which are convenient to install.

[0006] The utility model adopts the following technical solutions:

[0007] A shell of electrically conductive slip ring, the shell includes a first shell, a second shell and a connecting ring, the first shell and the second shell are connected to each other to form a cavity therebetween, the first shell is provided with a positioning protrusion, the second shell is provided with a positioning groove, the positioning protrusion is inserted into the positioning groove, and the connecting ring is sleeved on the first shell and the second shell.

[0008] Preferably, the connecting ring includes an elastic ring having elasticity. The elastic ring can clamp the first shell and the second shell.

[0009] More preferably, the elastic ring is a rubber ring.

[0010] Preferably, the shell is provided with a groove, and the connecting ring is inserted into the groove to connect the first shell and the second shell. The groove can limit the connecting ring, and the connecting ring will not move easily after being inserted into the groove.

[0011] Preferably, the shell has a first end and a second end, the positioning protrusion is arranged between the first end and the second end, and the connecting ring is arranged at the second end.

[0012] Preferably, the first shell has a first connecting surface, the second shell has a second connecting surface, the first connecting surface and the second connecting surface are oppositely arranged, and the first connecting surface and the second connecting surface are parallel to the axial center line of the shell.

[0013] Further, the height of the positioning protrusion is 1-1.5 mm.

[0014] More preferably, the first shell is provided with a blocking piece, the second shell is provided with a slot, and the blocking piece is inserted into the slot to prevent the first shell and the second shell from being separated. The height of the blocking piece is greater than the height of the positioning protrusion; when an external force tries to separate the first shell, the blocking piece can prevent the first shell and the second shell from being separated.

[0015] Preferably, the blocking piece and the positioning protrusion are integrally arranged.

[0016] The utility model discloses the following technical scheme is further adopted:

[0017] A conductive slip ring comprising the shell.

[0018] The utility model discloses the following technical scheme is further adopted:

[0019] A household appliance comprising the conductive slip ring.

[0020] Further, the household appliance is a hair dryer.

[0021] The utility model adopts the above scheme, and has the following advantages compared with the prior art:

[0022] The shell of the conductive slip ring of the utility model, when assembling, first inserts the positioning protrusion of the first shell into the positioning groove of the second shell, the positioning protrusion and the positioning groove are interference fit, then the connecting ring is sleeved on the first shell and the second shell, after the shell assembly is completed, can ensure that the first shell and the second shell are closely attached, and the mold structure of the shell is simple, the cost is lower and the installation is more convenient. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical scheme of the utility model, the following will be simply introduced the drawings needed to be used in the embodiment description, obviously, the drawings in the following description are only some embodiments of the utility model, for the ordinary skilled in the art, under the premise of not paying the creative labor, other drawings can also be obtained according to these drawings.

[0024] Figure 1 It is a schematic view of the conductive slip ring according to the embodiment of the utility model;

[0025] Figure 2 It is a schematic view of the housing according to the embodiment of the utility model;

[0026] Figure 3 It is a schematic view of the first housing according to the embodiment of the utility model;

[0027] Figure 4 It is a schematic view of the second housing according to the embodiment of the utility model;

[0028] Figure 5 It is a sectional view of the housing according to the embodiment of the utility model.

[0029] Among them,

[0030] 100, conductive slip ring;1, housing;

[0031] 11, first housing;111, positioning protrusion;112, first connecting surface;113, blocking piece;

[0032] 12, second housing;121, positioning recess;122, second connecting surface;123, insertion slot;

[0033] 13, connecting ring;14, recess;15, first end;16, second end. DETAILED DESCRIPTION

[0034] The preferred embodiments of the utility model will be described in detail below with reference to the drawings, so that the advantages and features of the utility model can be more easily understood by the skilled in the art. It needs to be explained that the description of these embodiments is used to help understanding the utility model, but does not constitute the limitation to the utility model.

[0035] The embodiment provides a conductive slip ring, which is used in household appliance, is used for transmitting power or signal, and can keep the transmission of power or signal from being interrupted in the process of rotating. The embodiment also provides a household appliance with the conductive slip ring. Specifically, the household appliance is a hair dryer, and the conductive slip ring is arranged at the handle of the hair dryer and is used for transmitting power to the hair dryer body and transmitting signal.

[0036] Referring to Figures 1 to 5As shown, the present embodiment also provides a housing 1 of the conductive slip ring 100, and the material of the housing 1 is plastic. The housing 1 has a protective effect, which prevents dust, moisture and other pollutants from entering the inside of the conductive slip ring 100 and affecting its performance. Further, the housing 1 includes a first housing 11, a second housing 12 and a connecting ring 13, the first housing 11 and the second housing 12 are connected to each other to form a cavity therebetween, and the connecting ring 13 is arranged on the outer surface of the housing 1.

[0037] Further, the first housing 11 is provided with a positioning protrusion 111 as shown, Figure 3 and the second housing 12 is provided with a positioning groove 121 for cooperating with the positioning protrusion 111 as shown, Figure 4 When assembling the housing 1, the positioning protrusion 111 is first inserted into the positioning groove 121, and then the first housing 11 and the second housing 12 form an integral body, and then the connecting ring 13 is sleeved on the outer surface of the first housing 11 and the second housing 12. Further, the positioning protrusion 111 and the positioning groove 121 are interference fit, with an interference of 0.1 mm on one side and an interference of 0.2 mm on both sides. When assembling, force is needed to complete the assembly, so as to achieve the tight connection between the first housing 11 and the second housing 12, and to effectively avoid the separation of the first housing 11 and the second housing 12.

[0038] As shown in combination with Figure 3 and Figure 4 The first housing 11 has a first connecting surface 112, and the second housing 12 has a second connecting surface 122, which are inner surfaces of the housing 1. The first connecting surface 112 and the second connecting surface 122 are oppositely arranged, and the first connecting surface 112 and the second connecting surface 122 are parallel to the axis of the housing 1. The positioning protrusion 111 extends from the first connecting surface 112 to the second connecting surface 122, and the height of the positioning protrusion 111 is 1-1.5 mm. In the present embodiment, the height of the positioning protrusion 111 is 1.3 mm. The structure of the housing or the housing mold of the present embodiment is relatively simple, which can reduce the production cost.

[0039] As shown in combination with Figure 2 The connecting ring 13 includes an elastic ring with elasticity. Specifically, the elastic ring is a rubber ring, and the shape of the rubber ring is an O-ring. The rubber ring can reduce the gap between the first housing 11 and the second housing 12. Figure 3 and Figure 4 The housing 11 is provided with a groove 14, which can limit the connecting ring 13. When assembling, the connecting ring 13 is inserted into the groove 14 to connect the first housing 11 and the second housing 12 more tightly. The groove 14 can effectively prevent the connecting ring 13 from moving or separating from the housing 1, that is, the assembly of the housing 1 is more stable.

[0040] Further, the first shell 11 and the second shell 12 are clamped by the connecting ring 13, which not only makes the connection between the first shell 11 and the second shell 12 more compact, but also makes the conductive slip ring meet the requirement of IP5X. It should be noted that meeting the requirement of IP5X means that the shell of the conductive slip ring can prevent solid foreign matter with a diameter greater than or equal to 1.0 mm from entering, and the amount of dust entering is insufficient to affect the normal operation or safety of the conductive slip ring.

[0041] The shell 11 has a first end 15 and a second end 16, the positioning protrusion 111 is arranged between the first end 15 and the second end 16, and the connecting ring 13 is arranged at the second end 16. The "first end" refers to the left end in Figure 2 , and the "second end" refers to the right end in Figure 2 .

[0042] Further, as shown in Figure 3 and Figure 5 , the first end 15 of the first shell 11 is provided with a blocking piece 113, which is shaped like a semicircle and extends from the first connecting surface 112 of the first shell 11 to the second connecting surface 122 of the second shell 12. The blocking piece 113 is integrally arranged with the positioning protrusion 111, and the height of the blocking piece 113 is greater than the height of the positioning protrusion 111. Further, the second shell 12 is correspondingly provided with a slot 123 extending downward from the second connecting surface 122, and the blocking piece 113 is inserted into the slot 123 during assembly. The blocking piece 113 is mainly arranged to effectively prevent the first shell 11 and the second shell 12 from separating during transportation or use. More specifically, when an external force is applied to separate the first shell 11, the blocking piece 113 can prevent the first shell 11 and the second shell 12 from separating.

[0043] As can be seen from Figure 3 , the shape of the positioning protrusion 111 is designed according to the shape of the shell 1, and the length of the positioning protrusion 111 is basically the same as the length of the shell 1, which can effectively ensure that the connection between the first shell 11 and the second shell 12 is relatively compact and not easy to separate.

[0044] During assembly of the shell 1 of the present embodiment, the positioning protrusion 111 is inserted into the positioning groove 121, and there will be a certain separation force between the first shell 11 and the second shell 12. However, the shell 1 is tightly clamped by the rubber ring, and the blocking piece 113 is inserted into the slot 123, which can ensure that the first shell 11 and the second shell 12 will not separate during transportation and line transfer.

[0045] The shell of the present embodiment has at least the following two advantages:

[0046] (1) the mold structure of the first shell and the second shell is simple, and installation is convenient;

[0047] (2) the requirement of IP5X can be met.

[0048] As shown in the specification and claims, the term "comprising" only indicates that the steps and elements explicitly identified are included, and these steps and elements do not constitute an exclusive list, and the method or device can also include other steps or elements. The term "and / or" used herein includes any combination of one or more related listed items.

[0049] It should be noted that, unless otherwise specified, when a certain feature is referred to as "fixed" or "connected" to another feature, it can be directly fixed or connected to the other feature, or indirectly fixed or connected to the other feature. In addition, the up, down, left, right and other descriptions used in the utility model are only relative to the mutual position relationship of the components of the utility model in the drawings.

[0050] The above embodiments are only for illustrating the technical concept and characteristics of the utility model, and are preferred embodiments, and the purpose is to enable those skilled in the art to understand the content of the utility model and implement it, and the protection scope of the utility model cannot be limited thereby. Any equivalent transformation or modification made according to the principle of the utility model should be covered within the protection scope of the utility model.

Claims

1. A housing for an electrically conductive slip ring, characterized in that The shell comprises a first shell, a second shell and a connecting ring, the first shell and the second shell are connected to each other to enclose a cavity therebetween, the first shell is provided with a positioning protrusion, the second shell is provided with a positioning groove, the positioning protrusion is inserted into the positioning groove, and the connecting ring is sleeved on the first shell and the second shell.

2. The housing of claim 1, wherein The connecting ring comprises an elastic ring with elasticity.

3. The housing of claim 2, wherein, The elastic ring is a rubber ring.

4. The case according to claim 2, characterized in that, The shell is provided with a groove, and the connecting ring is inserted into the groove to connect the first shell and the second shell.

5. The case according to claim 1, characterized by The shell has a first end and a second end, the positioning protrusion is arranged between the first end and the second end, and the connecting ring is arranged at the second end.

6. The housing of claim 5, wherein, The first shell has a first connecting surface, the second shell has a second connecting surface, the first connecting surface and the second connecting surface are oppositely arranged, the first connecting surface and the second connecting surface are parallel to the axial center line of the shell, and the positioning protrusion extends from the first connecting surface to the second connecting surface.

7. The case according to claim 5, characterized in that, The first shell is provided with a blocking piece, the second shell is provided with a slot, and the blocking piece is inserted into the slot to prevent the first shell and the second shell from being separated.

8. The case according to claim 7, characterized in that The blocking piece and the positioning protrusion are integrally arranged.

9. An electrically conductive slip ring, characterized in that A shell as claimed in any one of claims 1 to 8.

10. A domestic appliance comprising an electrically conductive slip ring, characterized in that The conductive slip ring comprises a shell as claimed in any one of claims 1 to 8.

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