CN211179602U

CN211179602U - Temperature difference detection device for heat pipe of mobile phone

Info

Publication number: CN211179602U
Application number: CN201922045038.1U
Authority: CN
Inventors: 罗志远
Original assignee: Dongguan Zhiape Electronic Technology Co ltd
Current assignee: Dongguan Zhiape Electronic Technology Co ltd
Priority date: 2019-11-22
Filing date: 2019-11-22
Publication date: 2020-08-04
Anticipated expiration: 2029-11-22

Abstract

The utility model relates to the field of test tools, in particular to a temperature difference detection device for a heat pipe of a mobile phone, which comprises a frame and a turnover plate, wherein the frame is provided with an installation part, one end of the turnover plate is rotationally connected with the installation part, and a driving mechanism for driving the turnover plate to rotate upwards is arranged in the frame; one side of the turnover plate is also provided with two lower pressure cylinders, a piston rod of each lower pressure cylinder is provided with a connecting piece, one end of each connecting piece, which is far away from the lower pressure cylinder, is provided with a pressure rod, a thermocouple is arranged in the pressure rod, and the induction contact part of the thermocouple is positioned at the bottom end of the pressure rod; the overturning plate is provided with a heating block and a positioning plate, the positioning plate is provided with a clearance hole for avoiding the clearance heating block, the positioning plate is provided with a cushion block, one end of a heat pipe to be tested is arranged on the cushion block, the other end of the heat pipe is arranged on the heating block, and the two lower pressing cylinders push corresponding pressing rods to tightly press the heat pipe on the cushion block and the heating block; the two thermocouples detect the temperature at the two ends of the heat pipe respectively.

Description

Temperature difference detection device for heat pipe of mobile phone

Technical Field

The utility model relates to a difference in temperature test fixture field, concretely relates to cell-phone heat pipe difference in temperature detection device.

Background

With the development of science and technology, intelligent electronic products, such as smart phones, are also rapidly developed. A heat pipe for radiating heat for the processor is arranged in the smart phone; the heat dissipation performance of the mobile phone is good and poor, and the key is a heat pipe; therefore, when the heat pipe is arranged on the mobile phone, the heat conducting performance of the heat pipe needs to be tested; however, when the mobile phone is not used, the mobile phone is mostly placed in the pocket, so that the mobile phone is in a vertical state; however, in the current testing process of the heat pipe of the mobile phone, only the heat conduction performance in the horizontal state is tested, so that the detected data of the heat conduction performance is inaccurate.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve lies in: the temperature difference detection device for the heat pipe of the mobile phone is provided to solve the problem that the heat conduction performance of the heat pipe is not accurate when the current test fixture is used for detecting the heat conduction performance of the heat pipe.

In order to solve the technical problem, the technical scheme of the utility model is that: the temperature difference detection device for the mobile phone heat pipe comprises a base and a turnover plate, wherein an installation part is arranged on the base, one end of the turnover plate is rotatably connected with the installation part, and a driving mechanism for driving the turnover plate to rotate upwards is arranged in the base; one side of the turnover plate is also provided with two lower pressure cylinders, a piston rod of each lower pressure cylinder is provided with a connecting piece, one end of each connecting piece, which is far away from the lower pressure cylinder, is provided with a pressure rod, a thermocouple is arranged in the pressure rod, and the induction contact part of the thermocouple is positioned at the bottom end of the pressure rod; the turnover plate is provided with a heating block and a positioning plate, the positioning plate is provided with a clearance hole for avoiding the heating block, the positioning plate is provided with a cushion block, one end of a heat pipe to be tested is arranged on the cushion block, the other end of the heat pipe to be tested is arranged on the heating block, and the two pressing cylinders push the corresponding pressing rods to tightly press the heat pipe on the cushion block and the heating block; the two thermocouples respectively detect the temperature at the two ends of the heat pipe.

Further, the lateral wall of depression bar lower extreme still is equipped with the breach, a plurality of through wires holes are located to the bottom of depression bar, the through wires hole run through to the diapire of breach.

Further, the pressing cylinder is a corner cylinder.

Furthermore, two connecting parts extend downwards from the bottom of one end of the turnover plate, and supporting legs are arranged at the bottom of the other end of the turnover plate; a rotating shaft penetrates through the two connecting parts and the mounting part; the driving mechanism drives the rotating shaft to rotate, so that the turnover plate is turned over along with the rotating shaft.

Furthermore, the driving mechanism comprises a first synchronizing wheel sleeved on the rotating shaft, a motor arranged in the base, a second synchronizing wheel arranged on the rotating shaft of the motor, and a synchronous belt connected with the first synchronizing wheel and the second synchronizing wheel.

Furthermore, a middle frame positioning part extending upwards is further arranged on the positioning plate.

Furthermore, a plurality of waist-shaped through holes are further formed in the turnover plate.

Further, the pressure lever comprises a guide sleeve, a telescopic rod, a pressure head and a compression spring; the guide sleeve penetrates through the connecting piece, the telescopic rod penetrates through the guide sleeve in a sliding mode, a limiting part is arranged at the upper end of the telescopic rod, the pressure head is arranged at the bottom end of the telescopic rod, one end of the compression spring is abutted against the guide sleeve, and the other end of the compression spring is abutted against the pressure head; the induction contact part of the thermocouple is positioned at the bottom of the pressure head.

Compared with the prior art, the temperature difference detection device for the mobile phone heat pipe has the following beneficial effects:

1. one end of a heat pipe to be tested is arranged on the cushion block, the other end of the heat pipe to be tested is arranged on the heating block, and the two pressing cylinders push the corresponding pressing rods to tightly press the heat pipe on the cushion block and the heating block; the two thermocouples respectively detect the temperature at the two ends of the heat pipe, and the heat conducting performance is calculated according to the temperature difference at the two ends. In the process of testing, through the vertical 90 of actuating mechanism drive returning face plate to detect the heat conductivility of heat pipe in vertical state, go to the heat conductivility of testing the heat pipe through the multidimension degree, consequently make the data that detect more accurate, also more be close to the state of normal use, guarantee that the precision of heat pipe test is higher, effectively avoid the false retrieval.

Drawings

FIG. 1 is a perspective view of the temperature difference detecting device for a heat pipe of a mobile phone of the present invention;

fig. 2 is a cross-sectional view of the pressure lever of the temperature difference detecting device for the heat pipe of the mobile phone of the present invention;

FIG. 3 is a structural diagram of the driving mechanism of the temperature difference detecting device for a heat pipe of a mobile phone according to the present invention;

FIG. 4 is a structural diagram of the part of the turning plate of the temperature difference detecting device for the heat pipe of the mobile phone of the present invention;

fig. 5 is an explosion structure diagram of the heating block of the temperature difference detecting device for the heat pipe of the mobile phone of the present invention.

Detailed Description

The following detailed description will be further described in conjunction with the above-identified drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the concepts underlying the described embodiments. It will be apparent, however, to one skilled in the art, that the described embodiments may be practiced without some or all of these specific details. In other instances, well known process steps have not been described in detail.

Referring to fig. 1, the temperature difference detection device for the mobile phone heat pipe comprises a base 1 and a turnover plate 2, wherein an installation part 10 is arranged on the base 1, one end of the turnover plate 2 is rotatably connected with the installation part 10, and a driving mechanism 3 for driving the turnover plate 2 to rotate upwards is arranged in the base 1. Two lower pressure cylinders 4 are further arranged on one side of the turnover plate 2, a connecting piece 5 is arranged on a piston rod of each lower pressure cylinder 4, a pressure rod 6 is arranged at one end, far away from the lower pressure cylinders 4, of each connecting piece 5, a thermocouple 7 is arranged in each pressure rod 6, and an induction contact part of each thermocouple 7 is located at the bottom end of each pressure rod 6; a heating block 8 and a positioning plate 9 are arranged on the turnover plate 2, a clearance hole for avoiding the heating block 8 is formed in the positioning plate 9, a cushion block 90 is arranged on the positioning plate 9, one end of a heat pipe to be tested is arranged on the cushion block 90, the other end of the heat pipe is arranged on the heating block 8, and the two pressing cylinders 4 push the corresponding pressing rods 6 to press the heat pipe on the cushion block 90 and the heating block 8; the two thermocouples 7 respectively detect the temperatures at the two ends of the heat pipe. And calculating the heat conduction performance according to the temperature difference of the two ends. In the process of test, through 2 vertical 90 of actuating mechanism 3 drive returning face plate to detect the heat conductivility of heat pipe in vertical state, go the heat conductivility of test heat pipe through the multidimension degree, consequently make the data that detect more accurate, also more be close to the state of normal use, guarantee that the precision of heat pipe test is higher, effectively avoid the false retrieval.

Further, referring to fig. 1 and 2, a notch 600 is further formed in the side wall of the lower end of the pressing rod 6, a plurality of threading holes 601 are formed in the bottom of the pressing rod 6, and the threading holes 601 penetrate through the bottom wall of the notch 600. In this embodiment, the electric wire of the thermocouple 7 penetrates through the threading hole 601 and penetrates out of the notch 600, so that the thermocouple 7 can be conveniently connected with a temperature display or a control system.

Further, the down-pressure cylinder 4 is a corner cylinder. Because the corner cylinder has the functions of pressing down and turning, when the heat pipe is placed and taken, the pressing down cylinder 4 can avoid the hands of a human body, and the material taking and placing are convenient.

Further, referring to fig. 1, two connecting portions 20 extend downwards from the bottom of one end of the turnover plate 2, and supporting legs are arranged at the bottom of the other end of the turnover plate 2; a rotating shaft 21 penetrates through the two connecting parts 20 and the mounting part 10; the driving mechanism 3 drives the rotating shaft 21 to rotate, so that the turnover plate 2 is turned over along with the rotating shaft.

Further, referring to fig. 1 and 3, the driving mechanism 3 includes a first synchronizing wheel 30 sleeved on the rotating shaft 22, a motor 31 disposed in the housing 1, a second synchronizing wheel 32 disposed on the rotating shaft of the motor 31, and a synchronizing belt 33 connecting the first synchronizing wheel 30 and the second synchronizing wheel 32. The rotation shaft 22 is driven to rotate by the motor 31, thereby turning the flipping panel 2.

Further, referring to fig. 1, the positioning plate 9 is further provided with a middle frame positioning portion 91 extending upward. In this embodiment, the mobile phone middle frame is used for testing the mobile phone middle frame provided with the heat pipe, and the mobile phone middle frame is positioned on the middle frame positioning portion 91, so that the heat pipe is positioned.

Further, referring to fig. 3 and 4, a plurality of kidney-shaped through holes 23 are further formed in the flipping plate 2. The kidney-shaped through-hole 23 reduces the overall weight of the flip 2. And waist shape through-hole 23 can also play the radiating effect, specifically, the heat that generates heat piece 8 production can transmit to returning face plate 2 on, consequently increases its radiating effect through waist shape hole 23, guarantees the temperature of returning face plate 2.

Further, referring to fig. 2, the compression bar 6 comprises a guide sleeve 60, a telescopic rod 61, a compression head 62 and a compression spring 63; the guide sleeve 60 penetrates through the connecting piece 5, the telescopic rod 61 penetrates through the guide sleeve 60 in a sliding manner, the upper end of the telescopic rod 61 is provided with a limiting part 610, the pressure head 62 is arranged at the bottom end of the telescopic rod 61, one end of the compression spring 63 abuts against the guide sleeve 60, and the other end of the compression spring abuts against the pressure head 62; the sensing contact of the thermocouple 7 is located at the bottom of the ram 62. In this embodiment, when the pressure bar 6 is on the heat pipe, the compression spring 63 is used to buffer the heat pipe, so as to protect the heat pipe.

Further, referring to fig. 5, the heating block 8 includes a copper block 80 and a ceramic heating sheet 81, a cavity is disposed at the bottom of the copper block 80, and the ceramic heating sheet 81 is disposed in the cavity; the heat generated by the ceramic heating sheet 81 is transferred to the copper block 80, and the heat is transferred to the heat transfer pipe by the copper block 80. The ceramic heating sheet 81 has stable thermal power, good heating effect and adjustable power; the heating of a CPU (central processing unit) such as a mobile phone or a flat panel can be simulated really.

The present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes without creative labor from the above conception, and all the changes fall within the protection scope of the present invention.

Claims

1. The temperature difference detection device for the mobile phone heat pipe is characterized by comprising a base and a turnover plate, wherein an installation part is arranged on the base, one end of the turnover plate is rotatably connected with the installation part, and a driving mechanism for driving the turnover plate to rotate upwards is arranged in the base; one side of the turnover plate is also provided with two lower pressure cylinders, a piston rod of each lower pressure cylinder is provided with a connecting piece, one end of each connecting piece, which is far away from the lower pressure cylinder, is provided with a pressure rod, a thermocouple is arranged in the pressure rod, and the induction contact part of the thermocouple is positioned at the bottom end of the pressure rod; the turnover plate is provided with a heating block and a positioning plate, the positioning plate is provided with a clearance hole for avoiding the heating block, the positioning plate is provided with a cushion block, one end of a heat pipe to be tested is arranged on the cushion block, the other end of the heat pipe to be tested is arranged on the heating block, and the two pressing cylinders push the corresponding pressing rods to tightly press the heat pipe on the cushion block and the heating block; the two thermocouples respectively detect the temperature at the two ends of the heat pipe.

2. The device for detecting temperature difference of a heat pipe of a mobile phone as claimed in claim 1, wherein the sidewall of the lower end of the pressure bar is further provided with a notch, the bottom of the pressure bar is provided with a plurality of threading holes, and the threading holes penetrate through to the bottom wall of the notch.

3. The device for detecting temperature difference of a heat pipe of a mobile phone according to claim 1, wherein the down-pressure cylinder is a corner cylinder.

4. The device for detecting the temperature difference of the heat pipe of the mobile phone according to any one of claims 1 to 3, wherein two connecting parts extend downwards from the bottom of one end of the turnover plate, and supporting legs are arranged at the bottom of the other end of the turnover plate; a rotating shaft penetrates through the two connecting parts and the mounting part; the driving mechanism drives the rotating shaft to rotate, so that the turnover plate is turned over along with the rotating shaft.

5. The device for detecting temperature difference of a heat pipe of a mobile phone according to claim 4, wherein the driving mechanism comprises a first synchronizing wheel sleeved on the rotating shaft, a motor arranged in the base, a second synchronizing wheel arranged on the rotating shaft of the motor, and a synchronizing belt connecting the first synchronizing wheel and the second synchronizing wheel.

6. The device for detecting temperature difference of a heat pipe of a mobile phone according to any one of claims 1 to 3, wherein the positioning plate is further provided with a middle frame positioning portion extending upward.

7. The device for detecting the temperature difference of the heat pipe of the mobile phone according to any one of claims 1 to 3, wherein a plurality of waist-shaped through holes are further formed on the turnover plate.

8. The device for detecting temperature difference of a heat pipe of a mobile phone according to any one of claims 1 to 3, wherein the pressure lever comprises a guide sleeve, a telescopic rod, a pressure head and a compression spring; the guide sleeve penetrates through the connecting piece, the telescopic rod penetrates through the guide sleeve in a sliding mode, a limiting part is arranged at the upper end of the telescopic rod, the pressure head is arranged at the bottom end of the telescopic rod, one end of the compression spring is abutted against the guide sleeve, and the other end of the compression spring is abutted against the pressure head; the induction contact part of the thermocouple is positioned at the bottom of the pressure head.

9. The device for detecting temperature difference of a heat pipe of a mobile phone according to any one of claims 1 to 3, wherein the heat block comprises a copper block and a ceramic heat generating sheet, a cavity is formed at the bottom of the copper block, and the ceramic heat generating sheet is arranged in the cavity.