CN211043208U - Temperature rise testing device for simulating surface temperature of human body - Google Patents
Temperature rise testing device for simulating surface temperature of human body Download PDFInfo
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- CN211043208U CN211043208U CN201921222830.3U CN201921222830U CN211043208U CN 211043208 U CN211043208 U CN 211043208U CN 201921222830 U CN201921222830 U CN 201921222830U CN 211043208 U CN211043208 U CN 211043208U
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Abstract
The utility model discloses a temperature rise testing arrangement for simulating human body surface temperature, temperature rise testing arrangement is at the during operation, fill water to circulation tank and heating water tank, form the circulation water route, the control of temperature control module adds the heating temperature of water tank to water, and the control adds the flow that the water tank carried to circulation tank, hydrothermal heat passes through circulation tank's warm portion and transmits to the test surface, make the surface temperature of test surface be similar to human body surface temperature, when being used for the household electrical appliances that generate heat with skin direct or indirect contact and test surface contact and operation, temperature measurement module detects the temperature of test surface, whether the temperature rise that the household electrical appliances product that generates heat caused skin is in safety range in order to confirm.
Description
Technical Field
The utility model relates to a testing arrangement, in particular to human skin surface temperature's of simulation temperature rise detection device.
Background
With the development of economy, many heating household appliances in direct or indirect contact with the skin have entered millions of families, and become one of the essential household appliances in the daily life of the public. Products in direct contact include steam eye masks, beauty tools, massage tools, etc.; the indirect contact products include a warmer, an electric pad, etc. Before the products come into the market, in order to ensure the safety of users, the products need to be tested to check whether the products can enable the skin to be in a temperature rise range which can be normally borne when the products contact the skin, so that the users are prevented from being scalded.
The existing tests for household appliances in direct contact with human skin are to directly test the surface temperature of the contact surface of the corresponding household appliance with the skin after the household appliances are directly electrified and operated for a period of time, or directly measure whether the temperature of the surface of the simulated skin is in a safe range after the household appliances are directly covered on the surface of the simulated skin for a period of time, the influence of body temperature on the temperature rise of the surface of the skin is not considered, and the potential safety hazard of low-temperature scald exists.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a temperature rise testing arrangement that can simulate human body surface temperature.
The purpose is mainly realized by the following technical scheme:
A temperature rise testing device for simulating the surface temperature of a human body comprises a testing surface, a heating water tank, a circulating pump, a temperature control module and a temperature measurement module, wherein the testing surface is used for simulating the surface skin temperature of the human body and contacting a household appliance to be tested for heating; the test surface is arranged on the temperature part of the circulating water tank, and the temperature control module controls the heating water tank to heat water until the temperature of the test surface is within the range of the body surface temperature of a human body; and the temperature measurement module detects and obtains the temperature rise change range of the contact surface of the test surface after the operation of the household appliance to be detected.
When a household appliance to be detected which is directly or indirectly contacted with the skin is contacted with the testing surface and operates, the temperature measuring module detects the temperature change of the testing surface to determine whether the temperature rise of the heating household appliance to the skin is in a safe range.
The utility model discloses can make following improvement: in order to improve the testing efficiency, more than one testing surface can be arranged on the surface of the warm part so as to realize the detection of a plurality of household electrical appliances; the testing surface consists of a rectangular groove and a material which is attached and fixed in the rectangular groove and simulates human tissue.
The utility model discloses can make following improvement: in order to enable the test surface of the temperature rise test device to be closer to the skin temperature of the human body in different physiological states, the surface of the test surface is covered with different materials for simulating human body tissues such as silica gel or polypropylene plates, so as to simulate the skin surface after muscle activity or the surface of the human body tissues such as joints.
Compared with the prior art, the utility model, there are following technological effect at least:
(1) The temperature control module controls the temperature of the heating water tank, the temperature of the heating water tank is controlled to be a set temperature, then liquid with the required temperature is conveyed to the circulating water tank, the surface temperature of a test surface is adjustable within the range of 26-40 ℃, the surface temperature of a human body is accurately simulated, and the stability of the surface temperature is ensured;
(2) the flow rate of the liquid flowing through the temperature measuring surface can be adjusted by controlling the flow transmitted from the temperature control module heating water tank to the circulating water tank, the flow rate can be adjusted within the range of 0-12L/min, the flowing condition of human blood can be simulated, and the test accuracy is improved;
(3) By adopting different materials such as silica gel or polypropylene plates, the simulation effect of the test surface relative to the skin surface can be further improved;
(4) By arranging a plurality of test surfaces, batch test is realized.
Drawings
Fig. 1 is a front view of the present invention;
Fig. 2 is a side view of the present invention;
Wherein: 1, a temperature measuring module; 2, a flow meter; 3, testing surface; 4, a temperature control module; 5, circulating a water tank; 6, heating a water tank; 7 an insulating layer.
Detailed Description
As shown in fig. 1-2, the temperature rise testing device comprises a testing surface 3 for simulating the skin temperature of a human body surface and contacting a heating appliance to be tested, a circulating water tank 5 for transferring heat to the testing surface 3, a heating water tank 6 for heating water to a set temperature, a circulating pump for delivering hot water in the heating water tank 6 to the circulating water tank 5, a temperature control module 4 for adjusting and monitoring the water temperature of the heating water tank 6, and a temperature measuring module 1 for detecting the temperature of the testing surface, wherein the heating water tank 6 and the temperature control module 4 can be selected from a heating water tank with constant temperature control and a model of 'tailor-made 1020' produced by shanghai horizontal Xuan scientific instruments ltd, and the temperature measuring module 1 can be selected from a temperature measuring device 'MX 100-E-1H' produced by 'yokogagao' company; the test surface 3 is arranged on a heating part of the circulating water tank 5, and the temperature control module 4 controls the heating water tank 6 to heat water until the temperature of the test surface is in the range of the body surface temperature of a human body; the temperature measuring module 1 detects and obtains the temperature rise change range of the test surface 3 after the contact with the household appliance to be detected and heated runs. The temperature control module and the temperature measuring module can be replaced by other commercially available electronic products with the same function.
When the temperature measuring device works, the circulating water tank 5 and the heating water tank 6 are filled with water to form a circulating water path, the heating temperature of the heating water tank 6 to water is controlled by the temperature control module 4, the circulating pump conveys the water heated by the heating water tank 6 to the circulating water tank 5, and the heat of the hot water is transferred to the testing surface 3 through the warm part of the circulating water tank 5, so that the surface temperature of the testing surface 3 is approximate to the body surface temperature of a human body, the temperature range is 26-40 ℃, when a heating household appliance directly or indirectly contacted with the skin is contacted with the testing surface 3 and works, the temperature measuring module 1 detects the temperature change of the testing surface 3 to confirm whether the temperature rise of the heating household appliance product to the skin is in a safe range, namely whether the body surface temperature is higher than 45 ℃, and whether the heating household appliance can have the possibility of low-temperature scald. For the temperature detection of the testing surface 3, the temperature rise measurement is carried out by arranging a temperature sensing element thermocouple contained in the temperature measuring module 1 on the surface of the testing surface 3.
A circulating water path is formed between the circulating water tank 5 and the heating water tank 6 through a circulating pump, a booster pump can be additionally arranged to participate in adjusting the flow rate of the circulating water path, so that the flow rate can be adjusted within the range of 0-12L/min, the flow rate can be measured through the flowmeter 2, the blood flow change after the human body strenuous exercise is simulated through the change of the flow rate, and the simulation effect of the human body skin temperature under different physiological states is achieved.
The warm part area outside the test surface is covered with an insulating layer 7, and the insulating layer 7 is preferably made of expanded polystyrene so as to avoid heat loss.
The specific process for testing the heating household appliance by adopting the temperature rise testing device is as follows:
The length/width of every test surface sets up to 600mm/300mm respectively, can adopt different materials as simulation skin according to specific household electrical appliances that generate heat, if adopt 8mm thick silica gel as simulation skin material, when the fixed silica gel of rectangular channel, can fix a position with four screws earlier, then extrude silica gel side all around and screw the screw after additionally fixing for the air between silica gel and the rectangular channel is discharged, makes it hug closely on the surface of test surface.
the temperature rise testing device sets the heating temperature of the heating water tank to be 35 +/-1 ℃, then the circulating pump is started, water in the heating water tank is conveyed to the circulating water tank, a circulating water path is formed, the flow rate of the circulating water path can be regulated and controlled by the booster pump, and the flow rate of the circulating water path is controlled to be 4L/min.
Selecting two batches of steam eye shields as tested samples, simultaneously testing on two testing surfaces, wherein each testing surface covers the heating part of the steam eye shield on the surface of silica gel, four thermocouple temperature probes are arranged on the surface of each piece of silica gel and distributed in a square shape, the numbers of the thermocouple temperature probes are 1# -8#, the same test is repeated for 2 groups, the numbers of the tested samples in the two batches of the first test are 1 and 2, the numbers of the tested samples in the two batches of the repeated test are 3 and 4, and recording the highest temperature point of the product, the average temperature of the product and the continuous heating time of the product.
The test result data are as follows:
The measured value is recorded every 5 minutes, the average temperature value of repeated measurement for many times is calculated at the same time as shown in the table above, the deviation between the measured value and the average temperature value is +/-1 ℃, and the temperature rise testing device can realize repeated measurement and can stably run.
The above embodiments of the present invention are not right the utility model discloses the limited protection scope, the utility model discloses an embodiment is not limited to this, all kinds of basis according to the above-mentioned of the utility model discloses an under the above-mentioned basic technical thought prerequisite of the utility model, right according to ordinary technical knowledge and the conventional means in this field the modification, replacement or the change of other multiple forms that above-mentioned structure made all should fall within the protection scope of the utility model.
Claims (6)
1. The utility model provides a temperature rise testing arrangement for simulating human body surface temperature which characterized in that: the device comprises a test surface, a circulating water tank, a heating water tank, a circulating pump, a temperature control module and a temperature measurement module, wherein the test surface is used for simulating the skin temperature of a human body surface and contacting a household appliance to be detected to generate heat; the test surface is arranged on the temperature part of the circulating water tank, and the temperature control module controls the heating water tank to heat water until the temperature of the test surface is within the range of the body surface temperature of a human body; and the temperature measurement module detects and obtains the temperature rise change range of the contact surface of the test surface after the operation of the household appliance to be detected.
2. Temperature rise test device according to claim 1, characterized in that: more than one test surface is arranged on the surface of the warm part.
3. Temperature rise test device according to claim 2, characterized in that: the testing surface consists of a rectangular groove and a material which is attached and fixed in the rectangular groove and simulates human tissue.
4. Temperature rise test device according to claim 3, characterized in that: the material of simulation human tissue is silica gel or polypropylene board.
5. Temperature rise test arrangement according to claim 4, characterized in that: and a booster pump for regulating and controlling the flow rate of the circulating water path is also arranged.
6. The temperature rise test device according to any one of claims 1 to 5, wherein: and an insulating layer covers the area outside the testing surface on the circulating water tank.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921222830.3U CN211043208U (en) | 2019-07-31 | 2019-07-31 | Temperature rise testing device for simulating surface temperature of human body |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921222830.3U CN211043208U (en) | 2019-07-31 | 2019-07-31 | Temperature rise testing device for simulating surface temperature of human body |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112013904A (en) * | 2020-09-03 | 2020-12-01 | 上海创始实业（集团）有限公司 | Temperature and humidity testing device and method |
| CN113324678A (en) * | 2021-05-28 | 2021-08-31 | 深圳市商汤科技有限公司 | Temperature simulation device and method, computer equipment and storage medium |
-
2019
- 2019-07-31 CN CN201921222830.3U patent/CN211043208U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112013904A (en) * | 2020-09-03 | 2020-12-01 | 上海创始实业（集团）有限公司 | Temperature and humidity testing device and method |
| CN113324678A (en) * | 2021-05-28 | 2021-08-31 | 深圳市商汤科技有限公司 | Temperature simulation device and method, computer equipment and storage medium |
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