CN212585856U - Temperature rise test system for mobile phone - Google Patents

Abstract

The utility model provides a cell-phone temperature rise test system for carry out the temperature rise test to the cell-phone, the system includes: a temperature recording device, a thermocouple and a hand model; the mobile phone to be tested is placed on the hand model, the thermocouple is arranged on the mobile phone to be tested and is connected with the temperature recording device, the thermocouple collects temperature data of the mobile phone to be tested, and the temperature recording device records the collected temperature data. The utility model discloses a cell-phone temperature rise test system, regard as bionical staff as a testing tool with the staff model in the test process, come the temperature rise test of supplementary cell-phone, the staff model possesses the temperature and the thermal property that are close with real staff, it is the true scene of using of simulation cell-phone when being used by the consumer to hold the cell-phone test with the staff model, this testing arrangement has considered the staff to the radiating influence of cell-phone, real temperature value when measured temperature value and cell-phone are used is very close, thereby make cell-phone temperature rise test result more accurate.

Description

Temperature rise test system for mobile phone

Technical Field

The utility model relates to a test technology, specific saying is a cell-phone temperature rise test system.

Background

In recent years, with the rapid development of electronic information technology, electronic products have been changed over the ground in terms of functions and structures, so that some requirements in the mandatory test standard IEC 60950 of electronic information products are not applicable to the current electronic product technology. Therefore, in order to keep pace with the technological development of electronic products, the International Electrotechnical Commission (IEC) issued standard IEC 62368 and planned to gradually replace standard IEC 60950 in 2020. This standard differs greatly from the standard IEC 60950 in terms of test requirements and test methods, by introducing the concept of Hazard-based Safety Engineering (HBSE).

The heat test of the mobile phone as a highly intelligent electronic product becomes a subject of high attention in the industry in recent years, mainly because the IEC 62368 is completely different from IEC 60950 in terms of the limit requirement and the test method for the heat test. In the traditional heating test method, only a thermocouple for measuring temperature is needed to be attached to the surface of the mobile phone, and the temperature value is read when the mobile phone heats stably.

In the current testing method in the industry, the real scene of the product such as the mobile phone when being used is ignored, the measured surface temperature is completely different from the temperature of the mobile phone when being used by a person under the condition of not considering the heat dissipation of the skin of the human body, and the error caused by the measuring method cannot be accepted for mandatory authentication.

SUMMERY OF THE UTILITY MODEL

For the accuracy that improves the test of cell-phone temperature rise for the test of cell-phone temperature rise accords with the in-service use scene more, the embodiment of the utility model provides a cell-phone temperature rise test system for carry out the temperature rise test to the cell-phone, the system include: a temperature recording device, a thermocouple and a hand model;

the hand model is used for accommodating a mobile phone to be tested, the thermocouple is arranged on the mobile phone to be tested and connected with the temperature recording device, the thermocouple collects temperature data of the mobile phone to be tested, and the temperature recording device records the collected temperature data.

In the embodiment of the present invention, the system further includes: and the constant temperature box is used for accommodating the hand model, the thermocouple and the tested mobile phone in the testing process.

In the embodiment of the utility model, the staff model include: the heating part is arranged on the hand model to heat the hand model.

In the embodiment of the utility model, staff model package still include:

and the constant temperature control device is connected with the heating part to control the temperature of the heating part.

In the embodiment of the utility model, the volume of thermostated container no longer than a square meter.

In the embodiment of the utility model provides an in, temperature recorder be paperless record appearance.

The utility model provides a cell-phone temperature rise test system considers human skin radiating factor in the test process, regard the staff model as bionical staff as a testing tool, come the temperature rise test of supplementary cell-phone, utilize the true staff of staff model simulation, through measuring the temperature of cell-phone with staff model and mobile phone contact, the true temperature value when measuring temperature value and cell-phone are used is very close to make cell-phone temperature rise test result more accurate.

In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic of a prior art temperature rise test;

fig. 2 is a block diagram of a temperature rise test system provided by the present invention;

fig. 3 is a schematic diagram of a temperature rise test system provided in an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Specific embodiments of the present invention are disclosed in detail with reference to the following description and the accompanying drawings, which specify the manner in which the principles of the invention may be employed. It should be understood that the embodiments of the present invention are not so limited in scope. The embodiments of the invention include many variations, modifications and equivalents within the spirit and scope of the appended claims.

Features that are described and/or illustrated with respect to one embodiment may be used in the same way or in a similar way in one or more other embodiments, in combination with or instead of the features of the other embodiments.

It should be emphasized that the term "comprises/comprising" when used herein, is taken to specify the presence of stated features, integers, steps or components but does not preclude the presence or addition of one or more other features, integers, steps or components.

In the new standard IEC 62368-1 for testing mobile phones, the temperature limit value required in the standard is a threshold value which does not cause skin burn when skin and a heat-generating material are in contact, because the concept of "contact temperature" is introduced. Therefore, according to the requirements of standard IEC 62368, it is unreasonable to use the temperature measured by the conventional test method as the final result, and the conventional test method should consider the factor of heat dissipation of human skin, measure the human skin by contacting the mobile phone, and then determine whether the measurement result is qualified according to the requirements of the new standard.

In the prior art, in the temperature rise test, thermocouple attachment point measurement for temperature measurement is adopted, as shown in fig. 1, which is a block diagram of the temperature rise test in the prior art, wherein a thermocouple is a commonly used temperature measuring element in a temperature measuring instrument, directly measures the temperature of a mobile phone to be measured, converts a temperature signal into a thermal electromotive force signal, converts the thermal electromotive force signal into the temperature of a medium to be measured through an electric instrument (a secondary instrument), generally attaches the thermocouple to the surface of the mobile phone through a heat conducting adhesive, and is connected with a temperature recorder to directly record the temperature at the attachment point of the surfaces of the thermocouple and the mobile phone.

The handset, as a hand-held (mobile or a component of any type of device that is held by the hand during normal use) device, is intended to be in contact with the skin of a person during use. And because blood in the human body continuously flows, the surface of the human body is a constant temperature body, so when the surface temperature of the mobile phone is higher than the skin temperature of the human body, heat transfer can be generated, the mobile phone and the human body achieve heat balance, the temperature after the heat balance is certainly lower than the temperature when the mobile phone is not in contact with the skin of the human body, and the skin of the human body has a heat dissipation function for the mobile phone. Therefore, first, the existing testing methods ignore the real scenario of a product, such as a cell phone, when it is used. Secondly, under the condition of not considering the heat dissipation of the skin of the human body, the measured surface temperature is completely different from the temperature of the mobile phone when being used by a person, and the error caused by the measuring method is completely unacceptable for mandatory authentication.

Based on prior art's problem and above-mentioned consideration, the utility model provides a cell-phone temperature rise test system utilizes this system to carry out the temperature rise test to the cell-phone, as shown in FIG. 2, the utility model discloses a system includes: a temperature recording device 201, a thermocouple 202 and a human hand model 203;

the mobile phone to be tested is placed on the hand model, the thermocouple is arranged on the mobile phone to be tested and is connected with the temperature recording device, the thermocouple collects temperature data of the mobile phone to be tested, and the temperature recording device records the collected temperature data.

The utility model discloses in, regard as bionical staff through the staff model, compare bionical staff as a part of temperature rise test system with current test scheme, the utility model discloses considered human heat dissipation, simulated the true scene when the cell-phone uses, the true temperature value when measured temperature value and cell-phone are used is very close, accords with the "contact temperature" theory that newly proposes in IEC 62368-1.

The embodiment of the utility model provides an in, temperature rise test system still includes: and the constant temperature box is used for accommodating the hand model, the thermocouple and the tested mobile phone in the testing process. Additionally, the embodiment of the utility model provides an in, the thermostated container also can be for the humiture case, provides the temperature, the humidity environment that satisfy the experiment needs for the experiment simultaneously.

In the test, the test mobile phone is placed in the thermostat for testing, the temperature and the humidity of the thermostat are adjusted, and the use environment condition of the mobile phone is further simulated. The thermocouple is attached to the contact point of the hand model and the mobile phone and is placed in the thermostat

In the embodiment of the utility model, the staff model include: the heating part is arranged on the hand model to heat the hand model.

In the embodiment of the utility model, the staff model still include:

and the constant temperature control device is connected with the heating part to control the temperature of the heating part, and the constant temperature control device is used as a temperature control device of the hand model.

The temperature of the heating part is controlled through the constant temperature control device, and the hand temperature in the use process of the mobile phone is simulated.

As shown in fig. 3, for the schematic diagram of a mobile phone temperature rise testing system provided by the embodiment of the present invention, the system is divided into three parts from the physical structure:

thermocouple and paperless recorder: for temperature acquisition and recording.

Simulating a human hand: comprises a hand model and a constant temperature control system. The human hand model that can simulate human body temperature, temperature adjustable.

A constant temperature box: the test environment that provides the temperature rise test, the humiture is controllable, and this embodiment is summarized, and the volume of thermostated container is 1 square meter.

When the temperature rise test is carried out on the mobile phone, a test system is set up according to the connection shown in figure 3; the thermocouple is attached to the surface of a test sample (mobile phone), the test sample is held by a human hand model, the temperature and humidity of the incubator are set, and the temperature data is recorded by the recording recorder, so that temperature rise test is performed.

The utility model discloses utilize bionical staff, simulate the in-service use scene of cell-phone, in an embodiment of the utility model, bionical staff includes two parts: the temperature control device controls the temperature of the water and enables the water to continuously circulate in the hand model, so that the temperature of the hand model is controlled. And the temperature is adjustable.

The utility model discloses a scheme is owing to added bionical staff, so more accord with the application scene when the cell-phone uses, and the temperature error of measuring result and cell-phone when in-service use is less moreover, and the test result more helps mandatory authentication. The temperature rise test of the mobile phone is carried out by taking a human hand as a test auxiliary tool for the first time. Secondly, the whole system is built, and the design of the bionic human hand is realized.

In the specification of the present invention, a large number of specific details are explained. It can be understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description. Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure and aiding in the understanding of one or more of the various inventive aspects. However, the disclosed method should not be interpreted as reflecting an intention that: rather, the invention as claimed requires more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this invention. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention is not limited to any single aspect, nor is it limited to any single embodiment, nor is it limited to any combination and/or permutation of these aspects and/or embodiments. Moreover, each aspect and/or embodiment of the present invention may be used alone or in combination with one or more other aspects and/or embodiments thereof.

It should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the hardware + program class embodiment, since it is substantially similar to the method embodiment, the description is simple, and the relevant points can be referred to the partial description of the method embodiment.

The foregoing description has been directed to specific embodiments of this disclosure. Other embodiments are within the scope of the following claims. In some cases, the actions or steps recited in the claims may be performed in a different order than in the embodiments and still achieve desirable results. In addition, the processes depicted in the accompanying figures do not necessarily require the particular order shown, or sequential order, to achieve desirable results. In some embodiments, multitasking and parallel processing may also be possible or may be advantageous.

The present invention has been explained by using specific embodiments, and the explanation of the above embodiments is only used to help understand the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the specific implementation and application scope, to sum up, the content of the present specification should not be understood as the limitation of the present invention.

Claims (5)

1. A mobile phone temperature rise test system is used for carrying out temperature rise test on a mobile phone, and is characterized by comprising: a temperature recording device, a thermocouple and a hand model;

the hand model is used for accommodating a mobile phone to be tested, the thermocouple is arranged on the mobile phone to be tested and is connected with the temperature recording device, the thermocouple collects temperature data of the mobile phone to be tested, and the temperature recording device records the collected temperature data;

the human hand model comprises: the heating part is arranged on the hand model to heat the hand model.

2. The mobile phone temperature rise test system of claim 1, further comprising a thermostat for accommodating the human hand model, the thermocouple and the mobile phone to be tested during the test process.

3. The mobile phone temperature rise test system of claim 1, wherein the human hand model further comprises:

and the constant temperature control device is connected with the heating part to control the temperature of the heating part.

4. The temperature rise testing system for mobile phone according to claim 2, wherein the volume of said oven is not more than one square meter.

5. The mobile phone temperature rise test system of claim 1, wherein the temperature recording device is a paperless recorder.

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