A split type electrical connector with good waterproof and dustproof functions

Abstract

The present invention discloses a split-type electrical connector with good waterproof and dustproof functions, which includes a male plug and a female plug, and is characterized in that: the male plug and the female plug are each provided with a split-connected male and female plug current-carrying member correspondingly suitable for plugging in; the male plug and the female plug are each provided with a split-connected male and female plug end cover correspondingly suitable for plugging in; the male plug and the female plug are also provided with waterproof sleeves at each connection part of the male and female plug housing. The beneficial effects of the present invention are: because the waterproof and foreign body-proof functions in the male and female plug design adopt a split-type structural design, the production process of each component thereof is simplified, the difficulty and cost of product manufacturing are reduced, the quality of each component is improved, and the male and female plugs have better sealing after being plugged in.

Description

Technical Field

[0001] The invention relates to an electric connector, in particular to a split electric connector with good waterproof and dustproof functions. Background Art

[0002] With the rapid development of science and technology, the energy storage capacity of power batteries is increasing. The number of electrical appliances and power tools using power batteries as power sources is increasing in the market. Since electrical appliances and power tools are equipped with electrical connectors, when using these electrical appliances and power tools, the electrical connectors provided therein sometimes need to be plugged in or loosened, and these electrical appliances and power tools are often operated in the wild or in dirty and poor conditions. When the electrical connector is in an environment with foreign objects such as water, rain, and mud, there is a problem in the use of the electrical connector. The electrical connector cannot be quickly plugged in, and it cannot be waterproof or prevent foreign objects from entering the electrical connector.

[0003] At present, a commonly used electrical connector structure in the market is: an open movable locking device is set on the male and female plug shells, so that the male and female electrical plugs can be plugged together and separated when in use. However, this open movable locking device structure has the problem of non-sealing for electrical connector products due to the lack of sealing design. When used in harsh environments, water, dust, sand and foreign particles often penetrate and accumulate in the locking device and the electrical connector, making the locking device and the electrical connector unable to work normally. Therefore, the above problems need to be solved. Summary of the invention

[0004] The purpose of the present invention is to provide a split electrical connector with good waterproof and dustproof functions. When the electrical connector is operated in the field or in a dirty and harsh environment, the male and female plugs can be quickly inserted or separated, and water and foreign objects can be prevented from entering the electrical connector.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a split-type electrical connector with good waterproof and dustproof functions, including a male plug and a female plug, wherein the male plug and the female plug are each provided with a split-connected male plug current-carrying part and a female plug current-carrying part that are correspondingly suitable for plugging and connecting, one end of the male plug current-carrying part and the female plug current-carrying part are respectively plugged into the corresponding male plug housing and the female plug housing, and the other end is respectively plugged into the male plug current-carrying part positioning seat body and the female plug current-carrying part positioning seat body that are correspondingly provided in the inner cavity of the male plug housing and the female plug housing; in order to enable the male and female plug current-carrying parts to be firmly positioned in the male and female housings; the male and female current-carrying part positioning seat bodies are provided with one and two positioning tube holes for installing and fixing the male and female current-carrying parts.

[0006] In order to reduce the difficulty and cost of manufacturing male and female plugs, the male plug and the female plug are each provided with a male and female plug end cover which are separately connected and correspondingly suitable for plugging and connecting, and the male and female plug end covers are respectively plugged into the corresponding male and female plug housings;

[0007] In order to make the electrical connector waterproof, a waterproof cover 1 is further provided at the corresponding plug-in connection of the male and female plug shells in the male plug and the female plug, a waterproof cover 2 is further provided at the connection intersection between the male plug end cover and the male plug shell and the male plug current-carrying component fixing seat body, and a waterproof cover 3 is further provided at the connection intersection between the female plug end cover and the female plug shell and the female plug current-carrying component fixing seat body;

[0008] In order to enable the male and female plug shells to be quickly plugged in, the outer walls of the male and female plug shells are provided with female and male locks that cooperate with each other and interlock. In order to enable the female and male locks to remain plugged in for a long time, the female lock structure is designed as a sleeve consisting of a front part connected to the male plug shell, an open top and a rear part closed top; the male lock structure is designed as an insert consisting of an arched one-way positioning elastic button strip connected to the shell at both ends and a limiting protrusion arranged in the inner cavity of the one-way positioning elastic button strip; in order to make the male and female plug shells have insulating properties, the male and female plug shells are made of injection molded insulators.

[0009] In order to prevent foreign matter from flowing into the male and female plug housings' male and female lock buckles, sealing baffles are provided on both sides of the front of the female lock buckle, and their height is greater than the height of the inner cavity of the male lock buckle's elastic strip; the rear of the female lock buckle is shaped as a concave groove with an opening facing downward.

[0010] In order to make the waterproof cover airtight and securely installed, a groove corresponding to the waterproof cover and used for installing the waterproof cover is provided on the front end of the female plug housing.

[0011] In order to connect the male and female plug shells with the male and female plug end covers and have a buckling function, the outer walls of the male and female plug shell ends are further provided with one and two fixing protrusions buckled with the male and female plug end covers.

[0012] In order to make the male and female plug end covers connected to the male and female plug housings to have buckle connection and waterproof functions, the male and female plug end covers are composed of an end cover body, a wire jacket and wires. The end cover body structure is designed as follows: one end of its outer shell is provided with an elastic plug-in buckle corresponding to the fixed protrusions of the male and female plug housings, and one end of its inner cavity is provided with frustum-shaped cavities two and three that cooperate with waterproof sleeves two and three; in order to make the end cover have an insulating function, the end cover body is injection-molded and connected to the wire jacket as a whole, and the material is an injection-molded insulator.

[0013] In order to make the waterproof cover have better sealing performance, the waterproof cover second and third structures are designed as: a circular hole whose inner hole is designed to correspond to the wire jacket, and the cover wall is designed to have one end as a cover body second and third corresponding to the shape of the inner cavity of the male and female plug shells, and the other end is designed as a component composed of a frustum-shaped body second and third corresponding to the frustum-shaped cavity second and third of the end cover body.

[0014] In order to ensure better contact between the male and female plug current-carrying parts after being plugged in, the male and female plug current-carrying parts are designed as cylindrical structures, and the material thereof is an alloy body. A crown spring plugged in with the male plug current-carrying part is also provided in the plug-in inner cavity at the front end of the female plug current-carrying part; in order to ensure better contact between the rear ends of the male and female plug current-carrying parts and the wires, a plug-in inner cavity hole for connecting the wires is provided at the rear ends of the male and female plug current-carrying parts.

[0015] In order to quantify the number of male and female plug current-carrying parts in the male and female plugs, two or more male and female plug current-carrying parts may be provided in the male and female plugs.

[0016] In order to make the waterproof cover firm and elastic, the material of the waterproof cover 1, the waterproof cover 2 and the waterproof cover 3 is an elastic plastic product.

[0017] Working principle of installation and use: First, insert the male and female plug current-carrying parts into the male and female current-carrying part positioning seat bodies respectively, and then insert the male and female plug current-carrying parts and the male and female current-carrying part positioning seat bodies into the inner cavity of the male and female plug shells together, and then install the waterproof cover in the female plug shell and the male and female plug end covers respectively, and then buckle the male and female end covers with the male and female plug shells to install the male and female plugs. When using, just plug and buckle the male and female plugs together.

[0018] The beneficial effects of the present invention are as follows: 1. Since the waterproof and foreign body-proof functions in the male and female plugs are designed with a split structure, the production process of each component is simplified, so that the difficulty and cost of product manufacturing can be reduced, and the quality of each component can be improved, so that the male and female plugs have better sealing after being plugged in. 2. Since each waterproof cover is an independent component, in actual use, the components can be replaced after being damaged, so that the use cost is greatly reduced. 3. Since sealing baffles are provided on both sides of the front of the female lock buckle, the inner cavity of the female and male lock buckles is in a sealed state after being plugged in, so dust and foreign matter are not easy to enter the inner cavity of the elastic strip, ensuring that no foreign matter accumulates in the inner cavity of the male lock buckle to affect its elasticity. 4. Since the male lock buckle structure is designed as an insert composed of an elastic strip with an arched shape connected to the shell at both ends and a limiting protrusion set in the inner cavity of the elastic strip, the deformation amplitude of the elastic strip is limited, and it is not easy to produce excessive deformation, which can ensure that the elastic strip does not fail in elasticity during long-term use. 5. Since the waterproof sleeve body is designed to be structurally designed as: a component consisting of sleeve bodies 2 and 3 at one end corresponding to the inner cavity shape of the male and female plug shells; and frustum-shaped bodies 2 and 3 at the other end corresponding to frustum-shaped cavities 2 and 3 of the male and female plug end covers, this structural design makes the sealed connection between the waterproof sleeve and the male and female plug shells, the male and female plug current-carrying parts positioning seats and the male and female plug end covers more airtight. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention is further described below in conjunction with the accompanying drawings and embodiments:

[0020] Figure 1 It is a three-dimensional schematic diagram of the present invention;

[0021] Figure 2 It is a three-dimensional exploded schematic diagram of the present invention;

[0022] Figure 3 It is a schematic cross-sectional view of the structure of the present invention after plugging;

[0023] Figure 4 It is a three-dimensional exploded schematic diagram of the male and female plug housings of the present invention;

[0024] Figure 5 It is a second three-dimensional schematic diagram of the waterproof cover of the present invention;

[0025] Figure 6 It is a three-dimensional schematic diagram of the waterproof cover of the present invention;

[0026] Figure 7 This is a schematic diagram of the male plug current-carrying member positioning seat of the present invention;

[0027] Figure 8 It is a schematic diagram of the positioning seat body of the current-carrying component of the female plug of the present invention.

[0028] 1. Male plug; 2. Female plug; 11. Current-carrying part of male plug; 21. Current-carrying part of female plug; 12. Male plug housing; 22. Female plug housing; 22-3. Grooves; 13. Positioning seat for current-carrying part of male plug; 23. Positioning seat for current-carrying part of female plug; 14. End cover of male plug; 24. End cover of female plug; 3. Waterproof cover 1; 15. Waterproof cover 2; 25. Waterproof cover 3; 12-1. Female lock buckle of male plug housing; 22-1. Male lock buckle of female plug housing; 12-11. Front part of female lock buckle; 12-12. Rear part of female lock buckle; 22-11, one-way positioning elastic button strip; 22-12 limiting convex block; 12-111, sealing baffle; 12-121, concave groove body; 12-2, housing fixing convex block 1; 22-2, housing fixing convex block 2; 14-1, end cover body 1; 24-1, end cover body 2; 14-2, wire jacket 1; 24-2 wire jacket 2; 14-3, wire 1; 24-3, wire 2; 14-11, elastic plug-in buckle 1; 24-11 elastic plug-in buckle 2; 14-12, cone-shaped cavity 2; 24-12, cone-shaped cavity 3; 15-1, sleeve body 2; 25-1, sleeve body 3; 15-2, frustum-shaped body 2; 25-2, frustum-shaped body 3; 21-1, crown spring; 11-1, inner cavity hole 1; 21-1, inner cavity hole 2; 13-1, positioning tube hole 1; 23-1, positioning tube hole 2. DETAILED DESCRIPTION

[0029] The present invention will be further described below in conjunction with the accompanying drawings.

[0030] like Figures 1 to 8 As shown, a split-type electrical connector with good waterproof and dustproof functions comprises a male plug 1 and a female plug 2. The male plug 1 and the female plug 2 are each provided with a split-connected male and female plug current-carrying parts (11, 21) that are correspondingly suitable for plugging and connecting. One end of the male and female current-carrying parts (11, 12) is respectively plugged into the corresponding male and female plug housings (12, 22), and the other end is respectively plugged into the male and female plug current-carrying parts positioning seats (13, 23) that are correspondingly arranged in the inner cavity of the male and female plug housings (12, 22); in order to enable the male and female plug current-carrying parts (11, 21) to be firmly positioned in the male and female housings, one and two installation positioning pipe holes (13-1, 23-1) for fixing the male and female current-carrying parts (11, 21) are correspondingly arranged in the male and female plug current-carrying parts positioning seats (13, 23).

[0031] Furthermore, in order to more simply and conveniently manufacture the end cover of the electrical connector, the male plug 1 and the female plug 2 are each provided with a male and female plug end cover (14, 24) which are separately connected and correspondingly suitable for plugging into each other, and the male and female plug end covers (14, 24) are respectively plugged into the corresponding matching male and female plug housings (12, 22).

[0032] Furthermore, in order to make the electrical connector waterproof, a waterproof cover 1 3 is provided at the corresponding plug-in connection of the male and female plug housings (12, 22) in the male plug 1 and the female plug 2, a waterproof cover 2 15 is provided at the connection intersection between the male plug end cover 14, the male plug housing 12 and the male plug current-carrying component fixing seat 13, and a waterproof cover 3 25 is provided at the connection intersection between the female plug end cover 24, the female plug housing 22 and the female plug current-carrying component fixing seat 23.

[0033] Furthermore, in order to enable the male and female plug housings (12, 22) to be quickly plugged into each other, female and male lock buckles (12-1, 22-1) that cooperate with each other to be plugged and buckled are provided on the outer walls of the male and female plug housings (12, 22). In order to enable the female and male lock buckles (12-1, 22-1) to remain plugged into each other for a long time, the female lock buckle 12-1 structure is designed as a sleeve body composed of a front part 12-11 connected to the outer wall of the male plug housing 12 and having an opening on the top, and a rear part 12-12 that is closed on the top; the male lock buckle 22-1 structure is designed as an insert body composed of a one-way positioning elastic button strip 22-11 with an arch shape and connected to the outer wall of the female housing 22 at both ends, and a limiting protrusion 22-12 arranged in the inner cavity of the one-way positioning elastic button strip 22-11; in order to enable the male and female plug housings (12, 22) to have insulation, the material of the male and female plug housings (12, 22) is an injection molded insulator.

[0034] Furthermore, in order to prevent foreign matter from flowing into the male and female plug housings' male and female lock buckles (12-1, 22-1), the front portion 12-11 of the female lock buckle is provided with sealing baffles 12-111 on both sides, and its height is greater than the inner cavity height of the male lock buckle's one-way positioning elastic button strip 22-11; the rear portion 12-12 of the female lock buckle is shaped as a concave groove body 12-121 with an opening facing downward.

[0035] Furthermore, in order to make the waterproof sleeve 3 airtight and securely installed, a groove 22-3 corresponding to the waterproof sleeve 3 and used for installing the waterproof sleeve 3 is provided on the front end of the female plug housing 22.

[0036] Furthermore, in order to connect the male and female plug housings (12, 22) to the male and female plug end covers (14, 24) and to provide a buckling function, the outer walls of the ends of the male and female plug housings (12, 22) are further provided with first and second fixing protrusions (12-2, 22-2) buckled with the male and female plug end covers (14, 24).

[0037] Furthermore, in order to connect the male and female plug end covers (14, 24) to the male and female housings (12, 22) and to provide buckle connection and waterproofing functions, the male and female plug end covers (14, 24) are composed of end cover bodies one and two (14-1, 24-1), wire jackets one and two (14-2, 24-2) and wires one and two (14-3, 24-3). The structure of the end cover bodies one and two (14-1, 24-1) is designed as follows: one end of the housing is provided with a protrusion one fixed to the male and female plug housings. The first and second elastic plug-in sleeve buckles (14-11, 24-11) are correspondingly buckled with the second and third waterproof sleeves (15, 25), and one end of the inner cavity is provided with the second and third cone-shaped cavities (14-12, 24-12) matching with the second and third waterproof sleeves (15, 25); in order to make the male and female plug end covers (14, 24) have insulation function, the end cover bodies (14-1, 24-1) and the wire jackets (14-2, 24-2) are injection-molded into one piece, and the material is injection-molded insulator.

[0038] Furthermore, in order to make the waterproof sleeves 2 and 3 (15 and 25) have better sealing performance, the waterproof sleeves 2 and 3 (15 and 25) are structurally designed as follows: a member is composed of a circular hole whose inner cavity is designed to correspond to the wire jackets 1 and 2 (14-2 and 24-2), and a sleeve wall designed to have one end as a sleeve body 2 and 3 (15-1 and 25-1) whose shape corresponds to the inner cavity of the male and female plug shells (12 and 22), and the other end as a cone-shaped body 2 and 3 (15-2 and 25-2) whose shape corresponds to the cone-shaped cavity 2 and 3 (14-12 and 24-12) of the end cover body.

[0039] Furthermore, in order to ensure better contact between the male and female plug current-carrying parts (11, 12) after being plugged in, the male and female plug current-carrying parts (11, 21) are designed as cylindrical structures, and the material thereof is an alloy body. A crown spring (21-1) plugged into the male plug current-carrying part (11) is also provided in the front end plug-in inner cavity of the female plug current-carrying part (21);

[0040] Furthermore, in order to enable the rear ends of the male and female plug current-carrying parts (11, 21) to better contact the first and second wires (14-3, 24-3), the rear ends of the male and female plug current-carrying parts (11, 21) are provided with first and second plugging inner cavity holes (11-1, 21-1) for connecting the first and second wires (14-3, 24-3).

[0041] In order to quantify the number of male and female plug current-carrying parts (11, 21) in the male and female plugs (1, 2), two or more male and female plug current-carrying parts (11, 21) may be provided in the male plug (1) and the female plug (2).

[0042] Obviously, the above embodiments are merely examples for clearly explaining the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. However, these obvious changes or modifications derived from the spirit of the present invention are still within the protection scope of the present invention.

Claims

1. A split electrical connector with good waterproof and dustproof functions, comprising a male plug (1) and a female plug (2), characterized in that: The male plug (1) and the female plug (2) are each provided with a male plug current-carrying part (11) and a female plug current-carrying part (21) which are separately connected and correspondingly suitable for plugging and connecting; one end of the male plug current-carrying part (11) and the female plug current-carrying part (21) are respectively plugged into a corresponding male plug housing (12) and a female plug housing (22), and the other end is respectively plugged into a male plug current-carrying part positioning seat body (13) and a female plug current-carrying part positioning seat body (23) which are respectively provided in the inner cavity of the male plug housing (12) and the female plug housing (22); The male plug (1) and the female plug (2) are each provided with a male plug end cover (14) and a female plug end cover (24) which are separately connected and correspondingly suitable for plugging into each other. The male plug end cover (14) and the female plug end cover (24) are respectively plugged into the corresponding matching male plug housing (12) and the female plug housing (22); The male plug (1) and the female plug (2) are further provided with a first waterproof cover (3) at the corresponding plug-in connection of the male plug housing (12) and the female plug housing (22), a second waterproof cover (15) at the connection between the male plug end cover (14), the male plug housing (12) and the male plug current-carrying component positioning seat (13), and a third waterproof cover (25) at the connection between the female plug end cover (24), the female plug housing (22) and the female plug current-carrying component positioning seat (23); The outer walls of the male plug housing (12) and the female plug housing (22) are provided with a female lock buckle (12-1) and a male lock buckle (22-1) that are mutually engaged and interlocked. The female lock buckle (12-1) is structurally designed as a sleeve body consisting of a front portion (12-11) connected to the outer wall of the male plug housing (12) and having an opening on the top, and a rear portion (12-12) that is closed on the top; the male lock buckle (22-1) is structurally designed as an insert body consisting of an arched one-way positioning elastic button strip (22-11) with two ends connected to the outer wall of the female plug housing (22) and a limiting protrusion (22-12) arranged in the inner cavity of the one-way positioning elastic button strip (22-11); the male and female plug housings are made of injection-molded insulators; Sealing baffles (12-111) are provided on both sides of the front portion (12-11) of the female lock buckle, and the height of the sealing baffles (12-111) is greater than the inner cavity height of the elastic button strip (22-11) of the male lock buckle; the rear portion (12-12) of the female lock buckle is shaped as a concave groove (12-121) with an opening facing downward.

2. A split type electrical connector with good waterproof and dustproof functions according to claim 1, characterized in that: The front end of the female plug housing (22) is provided with a groove (22-3) corresponding to the waterproof cover (3) and used for installing the waterproof cover (3).

3. The split type electrical connector with good waterproof and dustproof function according to claim 1, characterized in that: The outer walls of the ends of the male plug housing (12) and the female plug housing (22) are also provided with a fixing protrusion first (12-2) and a fixing protrusion second (22-2) which are buckled with the male plug end cover (14) and the female plug end cover (24).

4. The split type electrical connector with good waterproof and dustproof function according to claim 3, characterized in that: The male plug end cover (14) and the female plug end cover (24) are composed of an end cover body 1 (14-1) and an end cover body 2 (24-1), a wire jacket 1 (14-2) and a wire jacket 2 (24-2), and a wire 1 (14-3) and a wire 2 (24-3). The end cover body 1 (14-1) and the end cover body 2 (24-1) are structurally designed such that one end of the housing is provided with a fixing convex buckle 1 (12-2) and a fixing convex buckle 2 (22-2) corresponding to each other. The elastic plug-in buckle 1 (14-11) and the elastic plug-in buckle 2 (24-11) are buckled, and one end of the inner cavity is provided with a frustum-shaped cavity 2 (14-12) and a frustum-shaped cavity 3 (24-12) that match the waterproof sleeve 2 (15) and the waterproof sleeve 3 (25); the end cover body 1 (14-1) and the end cover body 2 (24-1) are injection-molded together with the wire jacket 1 (14-2) and the wire jacket 2 (24-2), and the material is an injection-molded insulator.

5. The split type electrical connector with good waterproof and dustproof function according to claim 4, characterized in that: The waterproof sleeve 2 (15) and waterproof sleeve 3 (25) are structurally designed as follows: they are composed of a circular hole whose inner cavity is designed to correspond to the wire jacket 1 (14-2) and the wire jacket 2 (24-2); the sleeve wall is designed to have one end formed by the sleeve body 2 (15-1) and the sleeve body 3 (25-1) corresponding to the inner cavity shape of the male plug housing (12) and the female plug housing (22); and the other end formed by the frustum-shaped body 2 (15-2) and the frustum-shaped body 3 (25-2) corresponding to the frustum-shaped cavity 2 (14-12) and the frustum-shaped cavity 3 (24-12) of the end cover body.

6. The split type electrical connector with good waterproof and dustproof function according to claim 4, characterized in that: The male plug current-carrying part (11) and the female plug current-carrying part (21) are designed as cylindrical structures and are made of an alloy. The front end plugging inner cavity of the female plug current-carrying part (21) is also provided with a crown spring plugged into the male plug current-carrying part (11); the rear ends of the male plug current-carrying part (11) and the female plug current-carrying part (21) are provided with a plugging inner cavity hole 1 (11-1) and a plugging inner cavity hole 2 (21-1) for connecting a first wire (14-3) and a second wire (24-3).

7. The split type electrical connector with good waterproof and dustproof function according to claim 1, characterized in that: The male plug (1) is provided with two or more male plug current-carrying parts (11), and the female plug (2) that is mated therewith is provided with two or more female plug current-carrying parts (21).

8. The split-type electrical connector with good waterproof and dustproof functions according to claim 1, characterized in that: The male plug current-carrying component positioning seat body (13) and the female plug current-carrying component positioning seat body (23) are provided with a first positioning tube hole (13-1) and a second positioning tube hole (23-1) for mounting and fixing the male plug current-carrying component (11) and the female plug current-carrying component (21).

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