CN201967131U

CN201967131U - Mobile phone electroacoustic test fixture

Info

Publication number: CN201967131U
Application number: CN2010206797594U
Authority: CN
Inventors: 陈伟荣; 孙亮
Original assignee: YAGUANG NYPRO PRECISION MOLDING (TIANJIN) CO Ltd
Current assignee: YAGUANG NYPRO PRECISION MOLDING (TIANJIN) CO Ltd
Priority date: 2010-12-27
Filing date: 2010-12-27
Publication date: 2011-09-07
Anticipated expiration: 2020-12-27

Abstract

The utility model relates to a mobile phone electroacoustic test fixture, which comprises a base, four location pillars, a pressure head, a test connector socket and four bearings, wherein the lower part of the pressure head is provided with a loudspeaker test sound cavity and an earphone test sound cavity; a loudspeaker test probe is embedded in the loudspeaker test sound cavity; an earphone test probe is embedded in the earphone test sound cavity; the lower ends of the four location pillars are respectively embedded on the base; the four bearings are respectively embedded on the pressure head; the upper ends of the four location pillars are respectively penetrated into the four bearings; and the four location pillars and the four bearings are in sliding fit. The utility model has the beneficial effects that the test fixture is capable of simultaneously testing a loudspeaker and an earphone and is simple to operate; the number of testers can be reduced by one; as a pure metal design is adopted by the probes, the service life is long; a four-bearing design is adopted, so that the movement of the fixture is stable and accurate; and as the structural design is reasonable and simple, the maintenance speed is increased. The design requirements of stable and accurate test, high work efficiency and low cost are met.

Description

Mobile phone electroacoustical measurement anchor clamps

Technical field

The utility model relates to test device for mobile phone, particularly a kind of mobile phone electroacoustical measurement anchor clamps.

Background technology

The acoustical testing of mobile phone back cover upper speaker and receiver generally need carry out respectively by two operations, and needs two testing stations, two cover testing equipments, therefore two testers, not only influence testing efficiency, and, strengthened testing cost owing to increase testing equipment and tester.

Summary of the invention

In view of above-mentioned prior art situation, the purpose of this utility model is: required at mobile phone back cover upper speaker and receiver acoustical testing, design a kind of mobile phone electroacoustical measurement anchor clamps.In order to reach the test request sealing and the fixing effect of back cavity, reach the purpose that improves testing efficiency simultaneously, so the corresponding comprehensive electroacoustical measurement anchor clamps of design under the prerequisite that satisfies handset audio element universal test standard, have improved testing efficiency and measuring accuracy.

The technical scheme that the utility model is taked for achieving the above object is: a kind of mobile phone electroacoustical measurement anchor clamps, comprise base, reference column, pressure head, test splice socket and bearing, it is characterized in that: the bottom of described pressure head is provided with loud speaker test tone chamber and receiver test tone chamber, the loud speaker test tone is inlaid with the loud speaker test probe in the chamber, the receiver test tone is inlaid with the receiver test probe in the chamber, the lower end of four reference columns is embedded on the base respectively, four bearings are embedded on the pressure head respectively, the upper end of four reference columns penetrates four bearings respectively, and four reference columns and four bearings are slidingly matched.

The beneficial effect that the utility model produced: this test fixture is test loudspeaker and receiver simultaneously, and is simple to operate; Can reduce by a tester; Because probe adopts the simple metal design, so high life; Adopt four design bearing, clamp movement is accurately stable; Because reasonable in design, simple has improved maintenance speed.Realized stable testing, accurately, high efficiency, designing requirement that cost is low.

Description of drawings

Fig. 1 is the utility model structural representation;

Fig. 2 is the upward view of pressure head among Fig. 1;

Fig. 3 is the enlarged drawing of receiver test probe.

Embodiment

The utility model is described in further detail below in conjunction with accompanying drawing:

With reference to Fig. 1, Fig. 2, mobile phone electroacoustical measurement anchor clamps comprise base 1, reference column 2, pressure head 3, test splice socket 8 and bearing 9, it is characterized in that: the bottom of pressure head 3 is provided with loud speaker test tone chamber 5 and receiver test tone chamber 7, loud speaker test tone chamber is inlaid with loud speaker test probe 4 for 5 li, receiver test tone chamber is inlaid with receiver test probe 6 for 7 li, the lower end of four reference columns 2 is embedded in respectively on the base 1, four bearings 9 are embedded in respectively on the pressure head 3, the upper end of four reference columns 2 penetrates 9, four reference columns 2 of four bearings respectively and four bearings 9 are slidingly matched.

This test fixture is provided with four reference columns 2 and four bearings 9, be equipped with corresponding positioning hole on base 1 and the pressure head 3, the lower end of four reference columns 2 is embedded on the base 1 by location hole respectively, four bearings 9 are embedded on the pressure head 3 by location hole respectively, by four reference columns 2 base 1 and pressure head 3 are connected as one.

Loud speaker test probe 4 adopts the indicator elastic probe, because two contact points of tested receiver are random site, in order to reach and the universal purpose that contacts of the contact point of receiver, receiver test probe 6 is designed to the universal probe of twin shaft copper column type, i.e. dicyclo probe.Axle 6-1, fixed axis 6-2 and outer shaft 6-3 in the universal probe of twin shaft copper column type comprises, wherein, fixed axis 6-2 is embedded among the outer shaft 6-3; An interior axle 6-1 is embedded among the fixed axis 6-2, referring to Fig. 3.Loud speaker test tone chamber 5 is the airtight back cavity of 2ml, and receiver test tone chamber 7 is the airtight back cavity of 1ml.

Test splice socket 8 adopts banana hair style test splice socket, and four banana hair style sockets are installed on the sidewall of pressure head 3.Adopt the more convenient connection of banana hair style socket, and can guarantee excellent contact, loss is little.The test fixture motion parts makes anchor clamps can stablize frequent movement under the prerequisite that guarantees accurate positioning by four reference columns 2.

The operation principle of this test fixture is as follows: four banana hair style sockets 8 are linked to each other with test signal, and the lead of loud speaker test probe 4 and receiver test probe 6 links to each other with test signal by banana hair style socket 8.After measured piece put into base 1, start the pneumatic equipment of audio-frequency test Sound Attenuator, pressure head 3 moves downwards along reference column 2, it is also airtight that the measured piece and the loud speaker test tone chamber 5 of pressure head 3 are contacted with receiver test tone chamber 7, test signal is by loud speaker test probe 4, and receiver test probe 6 passes to measured piece, and measured piece is at fixing loud speaker test tone chamber 5 and receiver test tone chamber 7 li difference sounding, and by relevant electroacoustical instrument reception, thereby the test of realization measured piece electroacoustic performance.

Claims

1. mobile phone electroacoustical measurement anchor clamps, comprise base (1), reference column (2), pressure head (3), test splice socket (8) and bearing (9), it is characterized in that: the bottom of described pressure head (3) is provided with loud speaker test tone chamber (5) and receiver test tone chamber (7), lining, loud speaker test tone chamber (5) is inlaid with loud speaker test probe (4), lining, receiver test tone chamber (7) is inlaid with receiver test probe (6), the lower end of four reference columns (2) is embedded in respectively on the base (1), four bearings (9) are embedded in respectively on the pressure head (3), the upper end of four reference columns (2) penetrates four bearings (9) respectively, and four reference columns (2) are slidingly matched with four bearings (9).

2. mobile phone electroacoustical measurement anchor clamps according to claim 1 is characterized in that: described loud speaker test probe (4) adopts the indicator elastic probe.

3. mobile phone electroacoustical measurement anchor clamps according to claim 1, it is characterized in that: described receiver test probe (6) is designed to the universal probe of twin shaft copper column type, the universal probe of twin shaft copper column type comprises interior axle (6-1), fixed axis (6-2) and outer shaft (6-3), wherein, fixed axis (6-2) is embedded in the outer shaft (6-3); Interior axle (6-1) is embedded in the fixed axis (6-2).

4. mobile phone electroacoustical measurement anchor clamps according to claim 1 is characterized in that: described test splice socket (8) adopts banana hair style socket, and four banana hair style sockets are installed on the sidewall of pressure head (3).