CN113471752A - Opposite-insertion type waterproof joint and production method thereof - Google Patents

Opposite-insertion type waterproof joint and production method thereof Download PDF

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Publication number
CN113471752A
CN113471752A CN202110532094.7A CN202110532094A CN113471752A CN 113471752 A CN113471752 A CN 113471752A CN 202110532094 A CN202110532094 A CN 202110532094A CN 113471752 A CN113471752 A CN 113471752A
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China
Prior art keywords
parts
waterproof
plug
connector
joint
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Pending
Application number
CN202110532094.7A
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Chinese (zh)
Inventor
杨健根
张永江
庞磊
徐伟
刘强
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Yibin Tianyi New Material Technology Co ltd
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Yibin Tianyi New Material Technology Co ltd
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Priority to CN202110532094.7A priority Critical patent/CN113471752A/en
Publication of CN113471752A publication Critical patent/CN113471752A/en
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/5219—Sealing means between coupling parts, e.g. interfacial seal
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
    • C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L27/04—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
    • C08L27/06—Homopolymers or copolymers of vinyl chloride
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/18—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for manufacturing bases or cases for contact members
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/24—Acids; Salts thereof
    • C08K3/26—Carbonates; Bicarbonates
    • C08K2003/265—Calcium, strontium or barium carbonate
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00—Specific properties of additives
    • C08K2201/002—Physical properties
    • C08K2201/005—Additives being defined by their particle size in general
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2203/00—Applications
    • C08L2203/20—Applications use in electrical or conductive gadgets
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend

Abstract

The utility model discloses a to inserting formula water joint, including male joint and female joint, its characterized in that: the hardness of the male connector is 80-85 HA, the hardness of the female connector is 69-77 HA, and the hardness difference between the male connector and the female connector is a positive value. The advantages are that: can show the waterproof performance who improves to inserting formula water joint, can obtain waterproof grade for IPX7 and thickness within 6mm to inserting formula water joint.

Description

Opposite-insertion type waterproof joint and production method thereof
Technical Field
The invention relates to a waterproof connector, in particular to an opposite-insertion type waterproof connector.
Background
Compare with traditional heating methods, integral type electrical heating geothermol power floor simple to operate, do not occupy outdoor space, heat energy dissipation is little, easily form the comfortable environment of "warm sufficient cold top" in the room, can adjust the temperature as required, receive consumer's extensive attention, possess huge market prospect, but this type of floor has the risk of electrocution, influences its marketing. The heating system of the integrated electric heating geothermal floor consists of a heating cable, a connector and a control system, and the connector is risked to be infiltrated by accumulated water on the floor. Only if the waterproof grade of connector reaches IPX7 level, the risk of electrocution just can be stopped to integral type electrical heating geothermal floor. At present, the connector of the geothermal floor mainly comprises modes of connecting buckles, single-pile single-hole plug connectors, electric conduction, T-shaped electric connection with air hole grooves, spiral connection and the like. The connecting buckles, the single-pile single-hole plug connectors are connected in a matching mode, the single-pile single-hole plug connectors are conductive, T-shaped electric connection with the air hole grooves is not firm in connection and easy to loosen and disengage, the waterproof grade cannot reach IPX7 grade, and potential safety hazards of electric shock exist. Although the waterproof grade of the spiral connection can reach IPX7 grade, if the diameter is less than 6mm, the installation is not easy, and if the diameter is more than 6mm, the geothermal floor needs to be provided with deeper grooves, which affects the mechanical strength of the floor. In view of the above, it is necessary to design a waterproof joint with a waterproof rating of IPX7, easy installation, and a thickness of less than 6 mm.
Disclosure of Invention
In order to improve the waterproof performance of the waterproof joint, the waterproof joint with the waterproof grade of IPX7 and the thickness within 6mm is provided, and the invention provides the plug-in waterproof joint.
The technical scheme adopted by the invention is as follows: to inserting formula water joint, including male joint and female joint, its characterized in that: the hardness of the male connector is 80-85 HA, the hardness of the female connector is 69-77 HA, and the hardness difference between the male connector and the female connector is a positive value.
As a further improvement of the invention, the hardness difference between the male connector and the female connector is 8-11 HA.
As a further improvement of the invention, the port of the female connector is smaller than the socket of the male connector.
As a further improvement of the invention, a sealing rubber ring is sleeved on the socket of the male connector.
As a further improvement of the invention, the thickness of the male joint and the female joint is less than or equal to 6 mm.
The invention also discloses a production method of the plug-in waterproof connector, and the production raw materials of the male connector comprise the following components in parts by mass: 100 parts of PVC resin, 10-50 parts of light calcium carbonate, 3-6 parts of calcium-zinc stabilizer, 0.2-1 part of stearic acid, 0.2-1 part of polyethylene wax, 2-8 parts of impact modifier ACR and 0.5-1 part of titanium dioxide; the production raw material of the female joint comprises the following components in parts by mass: 100 parts of PVC resin, 10-50 parts of light calcium carbonate, 3-6 parts of calcium-zinc stabilizer, 0.2-1 part of stearic acid, 0.2-1 part of polyethylene wax, 2-8 parts of impact modifier ACR, and titanium dioxide: 0.5-1 part of epoxidized soybean oil and 0.5-5 parts of epoxidized soybean oil.
As a further improvement of the invention, the PVC resin is SG-8 type resin.
As a further improvement of the invention, the light calcium carbonate has the granularity of 1000-1600 meshes.
As a further improvement of the invention, the calcium-zinc stabilizer Pb is less than or equal to 0.009 wt%, Cr6+Less than or equal to 0.0075 wt%, less than or equal to 0.0005 wt% of Cd, less than or equal to 0.006 wt% of Hg, and more than or equal to 17 minutes of static thermal stabilization time.
As a further development of the invention, the impact modifier ACR is a copolymer of methyl methacrylate and acrylates.
As a further improvement of the invention, the titanium dioxide is rutile type titanium dioxide.
The invention also discloses an integrated electric heating geothermal floor which is characterized by comprising the oppositely-inserted waterproof joint.
The invention has the beneficial effects that: can show the waterproof performance who improves to inserting formula water joint, can obtain waterproof grade for IPX7 and thickness within 6mm to inserting formula water joint.
Detailed Description
The present invention will be further described with reference to the following examples.
The first embodiment is as follows:
the plug-in waterproof joint is produced as follows:
(1) measuring the male connector production raw materials in parts by mass as follows: 100 parts of PVC resin, 40 parts of light calcium carbonate, 4 parts of calcium-zinc stabilizer, 0.2 part of stearic acid, 0.2 part of polyethylene wax, 5 parts of impact modifier ACR and 0.5 part of titanium dioxide. Measuring the raw materials for producing the female joint according to the following mass part ratio: 100 parts of PVC resin, 30 parts of light calcium carbonate, 4 parts of calcium-zinc stabilizer, 0.4 part of stearic acid, 0.3 part of polyethylene wax, 3 parts of impact modifier ACR, 1 part of titanium dioxide and 2 parts of epoxidized soybean oil. The PVC resin is SG-8 type resin; the granularity of the light calcium carbonate is 1200 meshes; 0.0072 wt% of Pb and Cr as calcium and zinc stabilizers6+0.0063 wt%, Cd is less than or equal to 0.00041 wt%, Hg is less than or equal to 0.0034 wt%, and static thermal stabilization time is 21 minutes; the impact modifier ACR is a copolymer of methyl methacrylate and acrylic ester; the titanium dioxide is rutile type titanium dioxide.
(2) Respectively performing injection molding on the raw materials to obtain a male connector and a female connector; the port of the female joint is smaller than the socket of the male joint; a sealing rubber ring is sleeved on the socket of the male connector; the thickness of the male connector and the female connector is 5 mm.
(3) The hardness of the male and female connectors is tested according to a Shore A determination method in GB/T2411-2008 "determination of indentation hardness (Shore hardness) of plastics and hard rubber by using a durometer", the waterproof grade is tested according to the specification of the international industrial waterproof standard IPX, and the results are shown in Table 1.
Example two:
the plug-in waterproof joint is produced as follows:
(1) measuring the male connector production raw materials in parts by mass as follows: 100 parts of PVC resin, 50 parts of light calcium carbonate, 5 parts of calcium-zinc stabilizer, 0.3 part of stearic acid, 0.3 part of polyethylene wax, 6 parts of impact modifier ACR and 0.6 part of titanium dioxide. Measuring the raw materials for producing the female joint according to the following mass part ratio: 100 parts of PVC resin, 40 parts of light calcium carbonate, 5 parts of calcium-zinc stabilizer, 0.5 part of stearic acid, 0.3 part of polyethylene wax, 4 parts of impact modifier ACR, 0.7 part of titanium dioxide and 2 parts of epoxidized soybean oil. The PVC resin is SG-8 type resin; the granularity of the light calcium carbonate is 1200 meshes; the calcium zinc stabilizer Pb is 0.0072wt％，Cr6+0.0063 wt%, Cd is less than or equal to 0.00041 wt%, Hg is less than or equal to 0.0034 wt%, and static thermal stabilization time is 21 minutes; the impact modifier ACR is a copolymer of methyl methacrylate and acrylic ester; the titanium dioxide is rutile type titanium dioxide.
(2) Respectively performing injection molding on the raw materials to obtain a male connector and a female connector; the port of the female joint is smaller than the socket of the male joint; a sealing rubber ring is sleeved on the socket of the male connector; the thickness of the male connector and the female connector is 5 mm.
(3) The hardness of the male and female connectors is tested according to a Shore A determination method in GB/T2411-2008 "determination of indentation hardness (Shore hardness) of plastics and hard rubber by using a durometer", the waterproof grade is tested according to the specification of the international industrial waterproof standard IPX, and the results are shown in Table 1.
Example three:
the plug-in waterproof joint is produced as follows:
(1) measuring the male connector production raw materials in parts by mass as follows: 100 parts of PVC resin, 45 parts of light calcium carbonate, 4.5 parts of calcium-zinc stabilizer, 0.6 part of stearic acid, 0.2 part of polyethylene wax, 7 parts of impact modifier ACR and 0.7 part of titanium dioxide. Measuring the raw materials for producing the female joint according to the following mass part ratio: 100 parts of PVC resin, 40 parts of light calcium carbonate, 4.5 parts of calcium-zinc stabilizer, 0.5 part of stearic acid, 0.3 part of polyethylene wax, 4 parts of impact modifier ACR, 0.7 part of titanium dioxide and 2 parts of epoxidized soybean oil. The PVC resin is SG-8 type resin; the granularity of the light calcium carbonate is 1200 meshes; 0.0072 wt% of Pb and Cr as calcium and zinc stabilizers6+0.0063 wt%, Cd is less than or equal to 0.00041 wt%, Hg is less than or equal to 0.0034 wt%, and static thermal stabilization time is 21 minutes; the impact modifier ACR is a copolymer of methyl methacrylate and acrylic ester; the titanium dioxide is rutile type titanium dioxide.
(2) Respectively performing injection molding on the raw materials to obtain a male connector and a female connector; the port of the female joint is smaller than the socket of the male joint; a sealing rubber ring is sleeved on the socket of the male connector; the thickness of the male connector and the female connector is 5 mm.
(3) The hardness of the male and female connectors is tested according to a Shore A determination method in GB/T2411-2008 "determination of indentation hardness (Shore hardness) of plastics and hard rubber by using a durometer", the waterproof grade is tested according to the specification of the international industrial waterproof standard IPX, and the results are shown in Table 1.
Example four:
the plug-in waterproof joint is produced as follows:
(1) measuring the male connector production raw materials in parts by mass as follows: 100 parts of PVC resin, 48 parts of light calcium carbonate, 4.4 parts of calcium-zinc stabilizer, 0.3 part of stearic acid, 0.5 part of polyethylene wax, 8 parts of impact modifier ACR and 0.2 part of titanium dioxide. Measuring the raw materials for producing the female joint according to the following mass part ratio: 100 parts of PVC resin, 38 parts of light calcium carbonate, 4.4 parts of calcium-zinc stabilizer, 0.45 part of stearic acid, 0.2 part of polyethylene wax, 4 parts of impact modifier ACR, 0.7 part of titanium dioxide and 2 parts of epoxidized soybean oil. The PVC resin is SG-8 type resin; the granularity of the light calcium carbonate is 1200 meshes; 0.0072 wt% of Pb and Cr as calcium and zinc stabilizers6+0.0063 wt%, Cd is less than or equal to 0.00041 wt%, Hg is less than or equal to 0.0034 wt%, and static thermal stabilization time is 21 minutes; the impact modifier ACR is a copolymer of methyl methacrylate and acrylic ester; the titanium dioxide is rutile type titanium dioxide.
(2) Respectively performing injection molding on the raw materials to obtain a male connector and a female connector; the port of the female joint is smaller than the socket of the male joint; a sealing rubber ring is sleeved on the socket of the male connector; the thickness of the male connector and the female connector is 5 mm.
(3) The hardness of the male and female connectors is tested according to a Shore A determination method in GB/T2411-2008 "determination of indentation hardness (Shore hardness) of plastics and hard rubber by using a durometer", the waterproof grade is tested according to the specification of the international industrial waterproof standard IPX, and the results are shown in Table 1.
Comparative example one:
this comparative example is a control experiment conducted under the same procedures and conditions as example one, except that: the female joint production raw material is the same as the male joint production raw material, so that the hardness of the female joint production raw material is equivalent to that of the male joint production raw material. The production raw material components of the female joint are as follows: 100 parts of PVC resin, 40 parts of light calcium carbonate, 4 parts of calcium-zinc stabilizer, 0.2 part of stearic acid, 0.2 part of polyethylene wax, 5 parts of impact modifier ACR and 0.5 part of titanium dioxide.
The hardness of the male and female connectors is tested according to a Shore A determination method in GB/T2411-2008 "determination of indentation hardness (Shore hardness) of plastics and hard rubber by using a durometer", the waterproof grade is tested according to the specification of the international industrial waterproof standard IPX, and the results are shown in Table 1.
Comparative example two:
this comparative example is a control experiment conducted under the same procedures and conditions as example one, except that: the male connector production raw material is the same as the female connector production raw material, so that the hardness of the male connector production raw material is equivalent to that of the female connector production raw material. The male connector production raw material comprises the following components: 100 parts of PVC resin, 30 parts of light calcium carbonate, 4 parts of calcium-zinc stabilizer, 0.4 part of stearic acid, 0.3 part of polyethylene wax, 3 parts of impact modifier ACR, 1 part of titanium dioxide and 2 parts of epoxidized soybean oil.
The hardness of the male and female connectors is tested according to a Shore A determination method in GB/T2411-2008 "determination of indentation hardness (Shore hardness) of plastics and hard rubber by using a durometer", the waterproof grade is tested according to the specification of the international industrial waterproof standard IPX, and the results are shown in Table 1.
TABLE 1 hardness of male and female connectors and waterproof grade test result table of plug-in type connector
Figure BDA0003068282510000051
As can be seen from the first to fourth examples in Table 1, the invention can obtain the plug-in waterproof joint with the thickness of less than 6mm and the waterproof grade of IPX 7.
As can be seen from the first embodiment, the first comparative embodiment and the second comparative embodiment in Table 1, under the same conditions, when the hardness difference between the male joint and the female joint is not obvious, the waterproof grade is obviously reduced, which shows that when the hardness of the male joint is larger than that of the female joint and reaches a certain range, the waterproof performance of the plug-in waterproof joint can be obviously improved.

Claims (12)

1. To inserting formula water joint, including male joint and female joint, its characterized in that: the hardness of the male connector is 80-85 HA, the hardness of the female connector is 69-77 HA, and the hardness difference between the male connector and the female connector is a positive value.
2. The plug-in waterproof joint according to claim 1, wherein: the hardness difference between the male connector and the female connector is 8-11 HA.
3. The plug-in waterproof joint according to claim 1, wherein: the port of the female connector is smaller than the socket of the male connector.
4. The plug-in waterproof joint according to claim 1, wherein: and a sealing rubber ring is sleeved on the socket of the male connector.
5. The plug-in waterproof joint according to claim 1, wherein: the thickness of the male connector and the female connector is less than or equal to 6 mm.
6. The production method of the plug-in waterproof connector as claimed in any one of claims 1 to 5, wherein the raw materials for producing the male connector comprise the following components in parts by mass: 100 parts of PVC resin, 10-50 parts of light calcium carbonate, 3-6 parts of calcium-zinc stabilizer, 0.2-1 part of stearic acid, 0.2-1 part of polyethylene wax, 2-8 parts of impact modifier ACR and 0.5-1 part of titanium dioxide; the production raw material of the female joint comprises the following components in parts by mass: 100 parts of PVC resin, 10-50 parts of light calcium carbonate, 3-6 parts of calcium-zinc stabilizer, 0.2-1 part of stearic acid, 0.2-1 part of polyethylene wax, 2-8 parts of impact modifier ACR, and titanium dioxide: 0.5-1 part of epoxidized soybean oil and 0.5-5 parts of epoxidized soybean oil.
7. The production method of the plug-in waterproof connector according to claim 6, wherein: the PVC resin is SG-8 type resin.
8. The production method of the plug-in waterproof connector according to claim 6, wherein: the granularity of the light calcium carbonate is 1000-1600 meshes.
9. The production method of the plug-in waterproof connector according to claim 6, wherein: the calcium zinc stabilizer Pb is less than or equal to 0.009 wt%, and Cr6+Less than or equal to 0.0075 wt%, less than or equal to 0.0005 wt% of Cd, less than or equal to 0.006 wt% of Hg, and more than or equal to 17 minutes of static thermal stabilization time.
10. The production method of the plug-in waterproof connector according to claim 6, wherein: the impact modifier ACR is a copolymer of methyl methacrylate and acrylates.
11. The production method of the plug-in waterproof connector according to claim 6, wherein: the titanium dioxide is rutile type titanium dioxide.
12. An integral type electrical heating geothermol power floor which characterized in that: the plug-in waterproof joint comprises the plug-in waterproof joint as claimed in any one of claims 1 to 5.
CN202110532094.7A 2021-05-17 2021-05-17 Opposite-insertion type waterproof joint and production method thereof Pending CN113471752A (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB939485A (en) * 1958-11-24 1963-10-16 Standard Telephones Cables Ltd Electrical semiconductor device
US4733692A (en) * 1985-05-30 1988-03-29 Nitto Kohki Co., Ltd Tube coupling
CN1349282A (en) * 2000-10-06 2002-05-15 安普泰科电子有限公司 Water-proof rubber casing
EP1793147A2 (en) * 2005-11-30 2007-06-06 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Storage device for fluid under pressure, mask and actuator comprising such a device
CN107286504A (en) * 2017-06-13 2017-10-24 山西泰鑫塑胶制品有限公司 A kind of high-performance PVC (polyvinyl chloride) U tubing

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB939485A (en) * 1958-11-24 1963-10-16 Standard Telephones Cables Ltd Electrical semiconductor device
US4733692A (en) * 1985-05-30 1988-03-29 Nitto Kohki Co., Ltd Tube coupling
CN1349282A (en) * 2000-10-06 2002-05-15 安普泰科电子有限公司 Water-proof rubber casing
EP1793147A2 (en) * 2005-11-30 2007-06-06 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Storage device for fluid under pressure, mask and actuator comprising such a device
CN107286504A (en) * 2017-06-13 2017-10-24 山西泰鑫塑胶制品有限公司 A kind of high-performance PVC (polyvinyl chloride) U tubing

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