CN204046825U

CN204046825U - The speaker housings of integrated injection molding

Info

Publication number: CN204046825U
Application number: CN201420484712.0U
Authority: CN
Inventors: 郭晓冬; 王文海; 毛林进
Original assignee: Goertek Inc
Current assignee: Goertek Inc
Priority date: 2014-08-26
Filing date: 2014-08-26
Publication date: 2014-12-24
Anticipated expiration: 2024-08-26

Abstract

The utility model belongs to electro-acoustic product technical field, particularly relate to a kind of speaker housings of integrated injection molding, comprise plastic casing, with the sheet metal of plastic casing integrated injection molding, the first shell fragment and the second shell fragment, the main paragraph of sheet metal, the first shell fragment and the main paragraph of the second shell fragment embed in plastic casing respectively, first shell fragment and the second shell fragment lay respectively on the relative dual-side of plastic casing, and sheet metal, the first shell fragment and the second shell fragment get off from severing same even material strip; During injection mo(u)lding, because sheet metal, the first shell fragment, the second shell fragment connect as one by connecting material strip, just can be fixedly connected with injection mold by one-time positioning, reduce the location number of times on injection mold, can positioning precision be improved, solve the problem needing to be determined sheet metal and shell fragment relative position by injection mold multiple bearing, reduce the required precision to injection mold, can reduce production difficulty to enhance productivity, relative reduces production cost.

Description

The speaker housings of integrated injection molding

Technical field

The utility model belongs to electro-acoustic product technical field, particularly relates to a kind of speaker housings of integrated injection molding.

Background technology

Loud speaker is indispensable acoustic element in electro-acoustic product, for converting electrical energy into acoustic energy, the housing of loud speaker is generally plastic casing, vibrational system and magnetic circuit system is contained in the cavity that plastic casing surrounds, plastic casing is also provided with the shell fragment be electrically connected with the voice coil loudspeaker voice coil of vibrational system, and shell fragment can be used as the pad of welding voice coil leads and in plastic casing, realize the cabling of electrical connection.In order to the intensity strengthening plastic casing can be embedded one deck steel disc usually on plastic casing, at present, steel disc and two shell fragments are as independently part, and be assembled in injection mo(u)lding in mould respectively during production, the weak point of existence is:

Due to steel disc and two shell fragment injection mouldings simultaneously, the relative position of steel disc and two shell fragments can only be determined by injection mold multiple bearing, very high to the required precision of injection mold, which adds production difficulty, reduce production efficiency, cause cost increase.

Utility model content

The purpose of this utility model is the speaker housings providing a kind of integrated injection molding, be intended to solve the problem needing to be determined sheet metal and shell fragment relative position by injection mold multiple bearing, reduce the required precision to injection mold, can reduce production difficulty to enhance productivity, relative reduces production cost.

The utility model realizes like this, a kind of speaker housings of integrated injection molding, the speaker housings of described integrated injection molding comprises plastic casing, also comprise the sheet metal with described plastic casing integrated injection molding, first shell fragment and the second shell fragment, described first shell fragment and described second shell fragment comprise main paragraph respectively, one end of described main paragraph is provided with wire bonds portion, the other end of described main paragraph is provided with bend, described sheet metal, the main paragraph of described first shell fragment, the main paragraph of described second shell fragment embeds in described plastic casing respectively, the wire bonds portion of described first shell fragment, the wire bonds portion of bend and described second shell fragment, bend exposes outside described plastic casing respectively, described first shell fragment and described second shell fragment lay respectively on the relative dual-side of described plastic casing, described sheet metal, described first shell fragment and described second shell fragment get off from severing same even material strip, and leave interval respectively between described sheet metal and described first shell fragment and between described sheet metal and described second shell fragment.

Improve as one, the wire bonds portion of described first shell fragment and the wire bonds portion of described second shell fragment are all arranged in the cavity area that described plastic casing surrounds.

Improve as one, on the sidewall of described plastic casing, the corresponding bend of described first shell fragment, the bend place of described second shell fragment are respectively equipped with a groove, and the bend of described first shell fragment, the bend of described second shell fragment are separately positioned in the described groove corresponding with it.

Improve as one, described sheet metal, described first shell fragment, described second shell fragment are made up of copper or stainless steel.

Owing to have employed technique scheme, the beneficial effect that the utility model obtains is as follows:

During injection moulding, first will be fixed in injection mold with sheet metal, the first shell fragment and the second shell fragment that even material strip connects as one, and then injection moulding, to connect again after injection mo(u)lding material strip and sheet metal, the first shell fragment and the second shell fragment cut out from, make sheet metal, the first shell fragment becomes with the second shell fragment the part be separated in plastic casing, such sheet metal would not be electrically connected with the second shell fragment with the first shell fragment, sheet metal, can avoid voice-coil short; During injection mo(u)lding, because sheet metal, the first shell fragment, the second shell fragment connect as one by connecting material strip, just can be fixedly connected with injection mold by one-time positioning, reduce the location number of times on injection mold, can positioning precision be improved, solve the problem needing to be determined sheet metal and shell fragment relative position by injection mold multiple bearing, reduce the required precision to injection mold, can reduce production difficulty to enhance productivity, relative reduces production cost.

Accompanying drawing explanation

Fig. 1 is the structural representation of the speaker housings of integrated injection molding of the present utility model;

Fig. 2 is the sectional structure schematic diagram along A-A line in Fig. 1;

Fig. 3 is the decomposing schematic representation of the speaker housings of integrated injection molding of the present utility model;

Fig. 4 is the injection mo(u)lding structural representation of the speaker housings of integrated injection molding of the present utility model;

Fig. 5 is the decomposition texture schematic diagram of Fig. 4;

Wherein, 10, plastic casing, 11, sheet metal, 12a, the first shell fragment, 12b, the second shell fragment, 121, wire bonds portion, 122, bend, 13, groove, 14, connect material strip, 141, the first engaging lug, 142, the second engaging lug, 143a, severing groove, 143b, severing groove, 143c, severing groove, 143d, severing groove.

Embodiment

In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.

By Fig. 1, Fig. 2 and Fig. 3 is known, the speaker housings of this integrated injection molding comprises: plastic casing 10, with the sheet metal 11 of plastic casing 10 integrated injection molding, first shell fragment 12a and the second shell fragment 12b, first shell fragment 12a and the second shell fragment 12b comprises main paragraph respectively, one end of main paragraph is provided with wire bonds portion 121, the other end of main paragraph is provided with bend 122, sheet metal 11, the main paragraph of the first shell fragment 12a and the main paragraph of the second shell fragment 12b embed in plastic casing 10 respectively, the wire bonds portion 121 of the first shell fragment 12a, the wire bonds portion 121 of bend 122 and the second shell fragment 12b, bend 122 exposes outside plastic casing 10 respectively, first shell fragment 12a and the second shell fragment 12b lay respectively on the relative dual-side of plastic casing 10, sheet metal 11, first shell fragment 12a and the second shell fragment 12b gets off from severing same even material strip 14, and between sheet metal 11 and the first shell fragment 12a, interval is left respectively between sheet metal 11 and the second shell fragment 12b.

For the ease of understanding, composition graphs 4, Fig. 5 injection molding process to shell is described:

Company's material strip 14 homonymy is arranged at intervals with the first engaging lug 141, second engaging lug 142, the two ends of sheet metal 11 are connected on the first engaging lug 141, second engaging lug 142, first shell fragment 12a is connected with the first engaging lug 141, second shell fragment 12b is connected with the second engaging lug 142, first shell fragment 12a, the second shell fragment 12b all between the first engaging lug 141 and the second engaging lug 142, the first shell fragment 12a, the second shell fragment 12b respectively and sheet metal 11 interval arrange.For the ease of sheet metal 11, first shell fragment 12a and the second shell fragment 12b is cut out, severing groove 143a, severing groove 143b is respectively arranged with in the junction of sheet metal 11 and the first engaging lug 141, sheet metal 11 and the second engaging lug 142, the junction of the first shell fragment 12a and the first engaging lug 141 is provided with severing groove 143c, the junction of the second shell fragment 12b and the second engaging lug 142 is provided with severing groove 143d.

During injection moulding, first by with connect sheet metal 11, the first shell fragment 12a that connects as one of material strip 14 and the second shell fragment 12b and be fixed in injection mold, and then injection moulding, break disconnected along severing groove 143a, severing groove 143b, severing groove 143c and severing groove 143d after injection mo(u)lding, sheet metal 11, first shell fragment 12a is made in plastic casing 10, to become with the second shell fragment 12b the part be separated, such sheet metal 11 would not be electrically connected with the second shell fragment 12b with the first shell fragment 12a, sheet metal 11, can avoid voice-coil short; During injection mo(u)lding, because sheet metal 11, first shell fragment 12a, the second shell fragment 12b are connected as one by the first engaging lug 141 on company's material strip 14 and the second engaging lug 142, just can be fixedly connected with injection mold by one-time positioning, reduce the location number of times on injection mold, positioning precision can be improved, solve the problem needing to be determined sheet metal and shell fragment relative position by injection mold multiple bearing, reduce the required precision to injection mold, can reduce production difficulty to enhance productivity, relative reduces production cost.

Existing loud speaker, in order to obtain better hearing-aid function, usually for it adds listening help circle, usual listening help circle is arranged on loudspeaker monomer inside, the wire bonds portion 121 of the first shell fragment 12a and the wire bonds portion 121 of the second shell fragment 12b are arranged in cavity area that plastic casing 10 surrounds, are convenient to the lead-in wire of listening help circle is welded on respectively the wire bonds portion 121 of the first shell fragment 12a and the wire bonds portion 121 of the second shell fragment 12b.

The bend 122 of the first shell fragment 12a is for being connected with external circuit by loud speaker with the bend 122 of the second shell fragment 12b, on the sidewall of plastic casing 10, the bend 122 of corresponding first shell fragment 12a and bend 122 place of the second shell fragment 12b are respectively equipped with a groove 13, the bend 122 of the first shell fragment 12a and the bend 122 of the second shell fragment 12b are separately positioned in the groove 13 corresponding with it, do not affect the elasticity of the bend 122 of the first shell fragment 12a and the bend 122 of the second shell fragment 12b on the one hand, on the other hand can by reduced thickness, be beneficial to the thin type development of product.

In the present embodiment, sheet metal 11, first shell fragment 12a, the second shell fragment 12b, the even material of material strip 14, first engaging lug 141, second engaging lug 142 are identical, are normally made up of copper or stainless steel.

The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection range of the present utility model.

Claims

1. the speaker housings of integrated injection molding, comprise plastic casing, it is characterized in that, the speaker housings of described integrated injection molding also comprises the sheet metal with described plastic casing integrated injection molding, first shell fragment and the second shell fragment, described first shell fragment and described second shell fragment comprise main paragraph respectively, one end of described main paragraph is provided with wire bonds portion, the other end of described main paragraph is provided with bend, described sheet metal, the main paragraph of described first shell fragment, the main paragraph of described second shell fragment embeds in described plastic casing respectively, the wire bonds portion of described first shell fragment, the wire bonds portion of bend and described second shell fragment, bend exposes outside described plastic casing respectively, described first shell fragment and described second shell fragment lay respectively on the relative dual-side of described plastic casing, described sheet metal, described first shell fragment and described second shell fragment get off from severing same even material strip, and leave interval respectively between described sheet metal and described first shell fragment and between described sheet metal and described second shell fragment.

2. the speaker housings of integrated injection molding according to claim 1, is characterized in that, the wire bonds portion of described first shell fragment and the wire bonds portion of described second shell fragment are all arranged in the cavity area that described plastic casing surrounds.

3. the speaker housings of integrated injection molding according to claim 1 and 2, it is characterized in that, on the sidewall of described plastic casing, the corresponding bend of described first shell fragment, the bend place of described second shell fragment are respectively equipped with a groove, and the bend of described first shell fragment, the bend of described second shell fragment are separately positioned in the described groove corresponding with it.

4. the speaker housings of integrated injection molding according to claim 3, is characterized in that, described sheet metal, described first shell fragment, described second shell fragment are made up of copper or stainless steel.