Plugging device for electric heating product and electric heating product

Abstract

The utility model discloses a plug-in device used for an electric heating product and the electric heating product, the plug-in device comprises a first connector and a second connector, one end of the first connector is connected with a power line, the other end of the first connector is provided with a plug, and a plurality of female end terminals are arranged in the plug; the second connector sequentially comprises an upper cover, a lower cover and a surface cover from top to bottom, the upper cover and the lower cover form a cavity, the front end of the cavity is a plugging slot matched with the plugging head, and a plurality of male end terminals matched with the female end terminals are arranged in the plugging slot; the surface cover is connected with the lower cover through a fixing structure, and the body of the electric heating product is fixed in a gap between the surface cover and the lower cover; the lower cover is also provided with a through hole, and the through hole is used for enabling a heating wire of an electric heating product to penetrate into the rear end of the cavity and to be electrically connected with the male end terminal. After the electric heating product adopts the plugging device, the internal heating wire can be more stably connected with the external power line, so that the electric heating product is not easy to loosen and short-circuited, and the electric heating product has a very good application value.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of power supply plug-in, specifically relates to a connector device for electric heating product and electric heating product. BACKGROUND

[0002] Electric heating products such as electric heating blanket, electric heating pad etc. generally include electric heating product body and power cord, and the electric heating product generates heat through the heating wire inside the body, and the heating wire needs to be connected with external circuit through the power cord.

[0003] The existing part of electric heating product is directly connected with the heating wire and the power cord, and the power cord is fixed on the body of the electric heating product, and the two cannot be separated from each other, which brings inconvenience to the movement or folding storage of the electric heating product, and also has certain safety hazards. There are also some electric heating products, and the heating wire is indirectly connected with the power cord through the connector device, but the connection between the heating wire and the connector device inside is easy to loosen and fall off after long-term plugging and pulling, which affects normal use, and even causes accidents. UTILITY MODEL CONTENTS

[0004] In view of the above problems, the utility model aims at providing a connector device for electric heating product, which can more stably connect the power cord with the heating wire inside the body of the electric heating product, so that it is not easy to loosen and short circuit.

[0005] In order to realize the above purpose, the utility model adopts the following technical scheme:

[0006] The utility model provides a connector device for electric heating product, which comprises:

[0007] The first connector is connected with the power cord at one end, and the other end is provided with a connector head, and a plurality of female terminals are arranged in the connector head;

[0008] The second connector comprises an upper cover, a lower cover and a surface cover from top to bottom, wherein the upper cover and the lower cover form a cavity, the front end of the cavity is a connector slot matched with the connector head, a plurality of male terminals matched with the female terminals are arranged in the connector slot, the surface cover is connected with the lower cover through a fixing structure, and the body of the electric heating product is fixed in the gap between the two, and the lower cover is also provided with a through hole, the through hole is used for the heating wire of the electric heating product to pass into the rear end of the cavity and be electrically connected with the male terminals.

[0009] Preferably, a plurality of connecting columns are arranged on the surface cover, a plurality of connecting holes matched with the connecting columns are arranged on the lower cover, and the connecting columns are inserted into the connecting holes to form a clamping type fixing structure to connect the surface cover and the lower cover when assembling.

[0010] Preferably, a plurality of conical needles are arranged on the abutting surface of the lower cover and / or the face cover.

[0011] Preferably, the inner surface of the lower cover is provided with a barrier part above the through hole, and a serpentine channel formed by two baffles extends from the barrier part, the serpentine channel extends from the barrier part to the through hole and forms a bend after passing through the through hole, and the open end of the serpentine channel faces the male terminal; when the heating wire is inserted, it passes through the through hole into the cavity, bypasses the barrier part from the outside, and is connected to the male terminal after passing through the serpentine channel.

[0012] Preferably, an isolation component is arranged between the end of the serpentine channel and the male terminal, and the heating wire is isolated into two wires by the isolation component after passing through the serpentine channel, and each wire is electrically connected to the corresponding male terminal.

[0013] Preferably, the barrier part is a hemispherical protrusion formed on the inner surface of the lower cover around the connecting hole.

[0014] Preferably, the connector includes two connector sub-heads, each of which contains two female terminals, and the connector slot includes two connector sub-slots matched with the connector sub-heads, each of which contains two male terminals; the number of through holes, barrier parts, serpentine channels, and isolation components is two, which are symmetrically distributed on both sides of the inner surface of the lower cover.

[0015] Preferably, at least one anti-stupidity protrusion is arranged on each of the two connector sub-heads of the connector, and an anti-stupidity groove corresponding to the anti-stupidity protrusion is arranged in each of the two connector sub-slots of the connector slot, so that the connector is inserted into the connector slot in the correct direction.

[0016] Preferably, an elastic claw is arranged on each side of the connector, and the end of the elastic claw is a beveled protrusion, a corresponding bayonet is arranged on the corresponding position on both sides of the connector slot, and an elastic button is arranged outside the bayonet, which abuts against the beveled protrusion when pressed and makes the beveled protrusion exit the bayonet.

[0017] Preferably, a plurality of buckles are arranged on the inner surface of the upper cover, and a matching buckle slot hole is arranged on the lower cover, so that the buckles are inserted into the buckle slot hole to fix and combine the upper cover and the lower cover.

[0018] Preferably, anti-slip parts adapted to the human finger pads are arranged on the upper and lower outer surfaces of the first connector.

[0019] The utility model discloses on the one hand provides a kind of electric heating product, including electric heating product ontology and above-mentioned connector, the electric heating product ontology includes heating wire, the second connector of the connector is fixed on the electric heating product ontology, the heating wire is electrically connected with the second connector.

[0020] The utility model has the following beneficial effects:

[0021] (1) the connector of the utility model for electric heating product is divided into first connector and second connector two parts, first connector is connected with power cord, second connector is provided with tightly matched connector slot and connector head respectively in first connector, and the male terminal in connector slot and the female terminal in connector head, so that the electrical strength performance is high after plug connection, not easy to loosen and short circuit, can effectively avoid the security risk caused by vibration or external force. In addition, when electric heating product does not need to be electrified, first connector part can be stored, it is safe, neat and beautiful, and also facilitate the folding storage of electric heating product.

[0022] (2) in the second connector cavity of connector, barrier and serpentine channel surrounded by baffle are arranged, heating wire is fixed by serpentine wiring mode after passing into through the hole on lower cover, can make it bear greater tension, enhance the anti-dropping capacity, further improve the reliability, stability and safety of connector. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a front structure schematic drawing of the connector for electric heating product provided by the utility model embodiment;

[0024] Figure 2 It is a reverse structure schematic drawing of the connector for electric heating product provided by the utility model embodiment;

[0025] Figure 3 It is a side structure schematic drawing of the connector for electric heating product provided by the utility model embodiment;

[0026] Figure 4 It is an explosion drawing of the connector for electric heating product provided by the utility model embodiment;

[0027] Figure 5 It is a face cover structure schematic drawing of the connector for electric heating product provided by the utility model embodiment;

[0028] Figure 6 It is a lower cover inner surface structure schematic drawing of the connector for electric heating product provided by the utility model embodiment;

[0029] Figure 7 It is Figure 6Oblique view of the lower cover inner surface structure schematic diagram shown;

[0030] Figure 8 An internal wiring diagram of a plug-in device for an electric heating product is provided.

[0031] In the figure: 1, first connector; 101, plug; 1011, female terminal; 1012, elastic paw; 1013, foolproof bump; 1014, inclined convex; 102, anti-skid part; 2, second connector; 201, upper cover; 2011, buckle; 202, lower cover; 2021, through hole; 2022, connecting hole; 2023, clamping groove hole; 2024, blocking part; 2025, baffle; 2026, serpentine channel; 2027, isolation assembly; 203, face cover; 2031, connecting column; 2032, conical needle; 204, elastic button; 205, plug-in slot; 2051, male terminal; 2052, fixed plate; 2053, foolproof groove; 206, bayonet; 3, power cord; 4, heating wire. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical scheme and advantages of the utility model more clear and intelligible, the following will be further described in detail in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model, and are not used to limit the utility model.

[0033] In the description of the utility model, it should be understood that the terms "upper", "lower", "front", "rear", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the utility model; Relationship terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations.

[0034] In the description of the utility model, it should be pointed out that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, integrally connected, or detachably connected; It can be the communication between the two elements; It can be directly connected, or indirectly connected through an intermediate medium; For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0035] Figures 1-5This embodiment illustrates a connector device for an electric heating product, comprising a first connector 1 and a second connector 2. One end of the first connector 1 is connected to a power cord 3, and the other end is provided with a plug 101, which contains a plurality of female terminals 1011. The second connector 2, from top to bottom, comprises an upper cover 201, a lower cover 202, and a face cover 203. The upper cover 201 and the lower cover 202 form a cavity, the front end of which is a slot 205 that can mate with the plug 101 of the first connector 1. The slot 205 contains a plurality of male terminals 2051 that mate with the female terminals 1011. The face cover 203 is connected to the lower cover 202 by a fixing structure, and the body of the electric heating product is fixed in the gap between the lower cover 202 and the face cover 203. Preferably, a plurality of tapered pins 2032 are provided on the mating surfaces of the lower cover 202 and the face cover 203 to make the body of the electric heating product more secure and prevent it from sliding. Furthermore, the lower cover 202 is also provided with a through hole 2021, combined with Figure 8 The heating wire 4 of the electric heating product passes through the through hole 2021 into the rear end of the cavity and forms an electrical connection with the male terminal 2051. Preferably, in this embodiment, the male terminal 2051 is a metal pin and the female terminal 1011 is a conductive socket. During operation, the connector 101 of the first connector 1 is inserted into the slot 205 of the second connector 2, and at the same time, the metal pin is inserted into the conductive socket, forming a tight fit and establishing a circuit.

[0036] Furthermore, such as Figure 2 and Figure 4 As shown, the inner surface of the upper cover 201 of the second connector 2 is provided with several buckles 2011, and a corresponding slot hole 2023 is provided at the corresponding position of the lower cover 202. After the buckles 2011 and the slot holes 2023 are pressed together, the upper cover 201 and the lower cover 202 can be tightly joined. Similarly, the connection... Figure 5On the side of the face cover 203 facing the lower cover 202, a plurality of connecting posts 2031 are arranged, and a plurality of connecting holes 2022 corresponding to the connecting posts 2031 are arranged on the lower cover 202. When the connecting posts 2031 are inserted into the connecting holes 2022, a clamping type fixing structure is formed. Specifically, in this embodiment, the top end of the connecting post 2031 is arranged as a clamping protrusion, and the inner part of the connecting hole 2022 is arranged as a clamping groove. The clamping protrusion and the clamping groove are clamped to fix the lower cover and the face cover. It should be noted that at least two screw posts are arranged on the inner surface of the upper cover 201, and screw holes corresponding to the screw posts are arranged on the lower cover 202 and the face cover 203. By screwing the bolts through the screw holes and the screw posts, the upper cover 201, the lower cover 202 and the face cover 203 are more stably connected together. It should be noted that the fixing between the upper cover 201 and the lower cover 202, the fixing between the lower cover 202 and the face cover 203, and the fixing between the upper cover 201, the lower cover 202 and the face cover 203 include but are not limited to the screw connection, the press-fit connection, the buckle connection and the like in the prior art.

[0037] Further, as shown in Figures 6-8 , in order to increase the tension that the heating wire 4 can withstand and prevent the heating wire 4 from being easily pulled out during normal use, after the heating wire 4 enters the rear end of the cavity of the second connector 2 through the through hole 2021 of the lower cover 202, the heating wire 4 is fixed in a serpentine manner. Specifically, a blocking part 2024 is arranged above the through hole 2021, a serpentine channel 2026 surrounded by two blocking plates 2025 extends from the blocking part 2024, the serpentine channel 2026 extends from the blocking part 2024 to the through hole 2021 and forms a bend after passing through the through hole 2021, the end of the serpentine channel 2026 is open towards the male terminal 2051, and a separation assembly 2027 is arranged between the end of the serpentine channel 2026 and the male terminal 2051. After the heating wire 4 enters the cavity from the through hole 2021, the heating wire 4 is wound around the blocking part 2024 from the outside, and then passes through the serpentine channel 2026 and is separated into two wires by the separation assembly 2027. The separation assembly 2027 prevents the two wires from interfering with each other, and then each wire is electrically connected to the end of the corresponding male terminal 2051. It should be understood that in this embodiment, the blocking part 2024 is a half-tube-shaped protrusion formed on the inner surface of the lower cover 202 around the connecting hole 2022. The separation assembly 2027 is two identical cylinders, which can also be any shape that can achieve the separation function in the prior art, and is not limited here.

[0038] It should be noted that in combination with Figure 2 , Figure 4 and Figures 6-8In the embodiment, the connector 101 includes two connector sub-heads, each of which contains two female terminals 1011, and the connector slot 205 includes two connector sub-slots that cooperate with the connector sub-heads, each of which contains two male terminals 2051. To make the male terminals 2051 more stable, a fixing plate 2052 is further arranged in the connector slot 205 of the second connector 2, and each male terminal 2051 is arranged in a clamping groove of the fixing plate 2052 so as not to be easily detached. The fixing plate 2052 is fixed to the lower cover 202 by means of bolts. Further, the number of through holes 2021, barrier portions 2024, serpentine passages 2026 and isolation assemblies 2027 is two, which are symmetrically distributed on both sides of the inner surface of the lower cover 202. Correspondingly, the number of heating wires 4 is also two, which enter the rear end of the cavity of the second connector 2 from the corresponding through holes 2021 and are fixed in a serpentine manner, and finally each heating wire 4 is divided into two strands, forming a total of four strands, which are electrically connected to the corresponding male terminals 2051.

[0039] It is worth noting that, as shown in Figure 2 , in the embodiment, a foolproof protrusion 1013 is further arranged on the connector head 101 of the first connector 1, and a corresponding foolproof groove 2053 is arranged in the connector slot 205 of the second connector 2, so as to ensure that the connector head 101 is inserted into the connector slot 205 in the correct direction and prevent damage to the connector device due to incorrect insertion direction. It should be noted that the foolproof protrusion 1013 can be arranged in various forms, such as being arranged on only one of the connector sub-heads of the connector head 101 or being arranged on both of the connector sub-heads of the connector head 101, and the position and number of the foolproof groove 2053 in the connector slot 205 are adjusted accordingly.

[0040] Further, as shown in Figure 2 and Figure 4 , in the embodiment, to facilitate the insertion and removal of the connector head 101, a resilient claw 1012 is further arranged on each side of the connector head 101, and the end of the resilient claw 1012 is a beveled protrusion 1014 structure. Corresponding notches 206 are arranged at the corresponding positions on both sides of the connector slot 205. When the connector head 101 is inserted into the connector slot 205, the beveled protrusion 1014 is clamped in the notches, so that the connector head 101 is not easily detached. Further, a resilient button 204 is arranged outside the notches 206 of the second connector 2. When the resilient button 204 is pressed, it abuts against the beveled protrusion 1014 and applies pressure to the beveled protrusion 1014, so that the beveled protrusion 1014 exits the notches 206, thereby allowing the connector head 101 to be easily removed. In addition, anti-slip portions 102 are arranged on the upper and lower outer surfaces of the first connector 1, which are arc-shaped protrusions that are adapted to the shape of the finger pads of the human body.

Claims

1. A connector device for an electric heating product, characterized in that The utility model relates to an electric heating product, including: A first connector (1), one end of the first connector (1) is connected with a power line (3), the other end is provided with a connector (101), a plurality of female terminals (1011) are arranged in the connector (101); A second connector (2), the second connector (2) includes upper cover (201), lower cover (202) and face cover (203) from top to bottom in turn, wherein the upper cover (201) and the lower cover (202) form a cavity, the front end of the cavity is the connector slot (205) matched with the connector (101), a plurality of male terminals (2051) matched with the female terminals (1011) are arranged in the connector slot (205); the face cover (203) is connected with the lower cover (202) through the fixed structure, and the body of the electric heating product is fixed at the gap between the face cover (203) and the lower cover (202); the lower cover (202) is also provided with a through hole (2021), the through hole (2021) is used for the heating wire (4) of the electric heating product to pass into the rear end of the cavity and be electrically connected with the male terminal (2051).

2. The connector assembly of claim 1, wherein, A plurality of connecting columns (2031) are arranged on the face cover (203), the lower cover (202) is provided with connecting holes (2022) matched with the connecting columns (2031), the connecting columns (2031) are inserted into the connecting holes (2022) to form a clamping type fixed structure to connect the face cover (203) and the lower cover (202) when assembling.

3. The connector assembly of claim 2, wherein: A plurality of tapered needles (2032) are arranged on the butt joint surface of the lower cover (202) and / or the face cover (203).

4. The connector assembly of claim 2, wherein: The inner surface of the lower cover (202) is provided with a barrier part (2024) located above the through hole (2021), a serpentine channel (2026) composed of two baffle plates (2025) extends from the barrier part (2024), the serpentine channel (2026) extends from the barrier part (2024) to the through hole (2021) and forms a bend after passing through the through hole (2021), and the open end of the serpentine channel (2026) faces the male terminal (2051); when the heating wire (4) passes in, it enters the cavity from the through hole (2021), bypasses the barrier part (2024) from the outside, and then passes out along the serpentine channel (2026) and is connected with the male terminal (2051).

5. The connector assembly of claim 4, wherein: An isolation assembly (2027) is arranged between the end of the serpentine channel (2026) and the male terminal (2051), and the heating wire (4) is separated into two wires after passing out of the serpentine channel (2026) through the isolation assembly (2027), and each wire is electrically connected with the corresponding male terminal (2051).

6. The connector assembly of claim 4, wherein: The barrier part (2024) is a hemispherical dome-shaped convex formed on the inner surface of the lower cover (202) around the connecting hole (2022).

7. The connector assembly of claim 5 wherein: The plug (101) includes two plug sub-heads, each of which contains two female terminals (1011), and the socket (205) includes two plug sub-slots matched with the plug sub-heads, each of which contains two male terminals (2051); the number of the through holes (2021), the blocking parts (2024), the serpentine channels (2026) and the isolation assemblies (2027) is two, which are symmetrically distributed on the two sides of the inner surface of the lower cover (202).

8. The connector assembly of claim 7, wherein: At least one anti-stupid protrusion (1013) is arranged on each of the two plug sub-heads of the plug (101), and an anti-stupid groove (2053) corresponding to the anti-stupid protrusion (1013) is arranged in each of the two plug sub-slots of the socket (205), so as to ensure that the plug (101) is inserted into the socket (205) in the correct direction.

9. The connector assembly of claim 1, wherein, An elastic claw (1012) is arranged on each side of the plug (101), the end of the elastic claw (1012) is a beveled protrusion (1014), a bayonet (206) matched with the beveled protrusion (1014) is arranged on the corresponding position of each side of the socket (205), and an elastic button (204) is arranged outside the bayonet (206) of the second plug (2), the elastic button (204) is in abutment with the beveled protrusion (1014) when being pressed down, and the beveled protrusion (1014) is out of the bayonet (206).

10. The connector assembly of claim 1, wherein: The inner surface of the upper cover (201) is provided with a plurality of buckles (2011), and the lower cover (202) is provided with matched buckle holes (2023), the buckles (2011) are inserted into the buckle holes (2023) to fix and combine the upper cover (201) and the lower cover (202).

11. The connector assembly of claim 1, wherein: The upper and lower outer surfaces of the first plug (1) are provided with anti-slip parts (102) matched with the human finger pads.

12. An electrothermal product characterised in that, The plug (101) includes two plug sub-heads, each of which contains two female terminals (1011), and the socket (205) includes two plug sub-slots matched with the plug sub-heads, each of which contains two male terminals (2051); the number of the through holes (2021), the blocking parts (2024), the serpentine channels (2026) and the isolation assemblies (2027) is two, which are symmetrically distributed on the two sides of the inner surface of the lower cover (202). At least one anti-stupid protrusion (1013) is arranged on each of the two plug sub-heads of the plug (101), and an anti-stupid groove (2053) corresponding to the anti-stupid protrusion (1013) is arranged in each of the two plug sub-slots of the socket (205), so as to ensure that the plug (101) is inserted into the socket (205) in the correct direction. An elastic claw (1012) is arranged on each side of the plug (101), the end of the elastic claw (1012) is a beveled protrusion (1014), a bayonet (206) matched with the beveled protrusion (1014) is arranged on the corresponding position of each side of the socket (205), and an elastic button (204) is arranged outside the bayonet (206) of the second plug (2), the elastic button (204) is in abutment with the beveled protrusion (1014) when being pressed down, and the beveled protrusion (1014) is out of the bayonet (206). The inner surface of the upper cover (201) is provided with a plurality of buckles (2011), and the lower cover (202) is provided with matched buckle holes (2023), the buckles (2011) are inserted into the buckle holes (2023) to fix and combine the upper cover (201) and the lower cover (202). The upper and lower outer surfaces of the first plug (1) are provided with anti-slip parts (102) matched with the human finger pads.

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