Electric blanket plug connector

Abstract

The invention relates to an electric blanket plug connector which comprises an end cover component, a box body component, a circuit board component and an external assembly board. The end cover part and the box body part are of an integrated injection molding structure and are installed in a clamped mode to form a connecting box body with an opening in one side in a buckled mode. The circuit board component is mounted in the connecting box body, a connecting socket is arranged on the circuit board component, and the connecting socket is mounted at an opening of the connecting box body; the external assembly plate is integrally formed through injection molding, a plurality of fixing columns are arranged on the external assembly plate, and the fixing columns penetrate through a blanket body of the electric blanket, then penetrate into the bottom of the box body part and are connected with the box body part in a clamped mode; a hollowed-out hole is formed in the side, facing the external assembly plate, of the box body part, and the circuit board part is electrically connected with the heating circuit in the blanket body through the hollowed-out hole. According to the electric blanket plug connector, the end cover part, the box body part and the external assembly plate which are integrally formed by injection molding of insulating materials are utilized, metal-structure-free assembly of the electric blanket plug connector and the electric blanket body is achieved, assembly is convenient, and the risk of electric leakage is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of heating wire controller connection devices, and in particular to an electric blanket plug connector. Background Art

[0002] At present, most electric blanket plug connectors are fixed to the electric blanket body with metal screws or bolts, which may cause friction and damage to the electric blanket body, leading to safety hazards of leakage. In addition, the box of the electric blanket plug connector itself is also mostly connected with metal screws or bolts, so there is also a risk of extrusion deformation, causing the metal screws or bolts to bulge out, interfering with the internal circuit and causing leakage. Summary of the invention

[0003] The present application provides an electric blanket plug connector to solve the problem that the electric blanket plug connector in the prior art is connected by metal screws or bolts, which is prone to leakage safety hazards.

[0004] According to the present application, an electric blanket plug connector is provided, comprising: an end cover component, a box body component, a circuit board component and an external assembly board;

[0005] The end cover component and the box body component are both made of insulating material and are an integral injection-molded structure. The two are snap-fitted and installed to form a connecting box body with an opening on one side; the circuit board component is installed in the connecting box body, and a connecting socket is provided on the circuit board component, and the connecting socket is installed at the opening of the connecting box body; the external assembly board is made of insulating material and is integrally injection-molded, and is provided with a plurality of fixing columns, which pass through the blanket body of the electric blanket and then penetrate into the bottom of the box body component and are snap-fitted with the box body component; a hollow hole is provided on the side of the box body component facing the external assembly board, and the circuit board component is electrically connected to the heating circuit in the blanket body through the hollow hole.

[0006] In some embodiments, multiple groups of first cantilever beam buckles are provided on the inner side of the end cover component, and multiple clamping holes are provided on the box body component corresponding to the first cantilever beam buckles. The inner walls of the clamping holes are parallel to the insertion direction of the first cantilever beam buckles, and the inner walls of the clamping holes are provided with clamping blocks that engage with the first cantilever beam buckles.

[0007] In some embodiments, two groups of first cantilever beam buckles are provided, the buckling directions of the two groups of first cantilever beam buckles are arranged in opposite directions, and each group of first cantilever beam buckles includes a plurality of first cantilever beam buckles.

[0008] In some embodiments, the first cantilever beam buckle is a right-angle buckle, whose snap-fit ​​surface is perpendicular to the cantilever beam, and a reinforcing rib is provided on the back side of the first cantilever beam buckle, and the reinforcing rib is in a triangular or rectangular shape.

[0009] In some embodiments, the buckling edges of the end cover component and the box body component are provided with a stop structure.

[0010] In some embodiments, a plurality of snap-in end caps are provided on the box body component corresponding to the fixed columns, an enlarged conical plug is provided at the end of the fixed column, the snap-in end cap protrudes along the insertion direction of the fixed column, and a snap ring that snaps into the conical plug is provided on the top of the snap-in end cap.

[0011] In some embodiments, a plurality of support platforms are disposed in the box body component, and the first cantilever beam buckle and the fixing column are disposed around the support platforms, and the support platforms jointly support the circuit board component to position the circuit board component in the connection box body.

[0012] In some embodiments, the connecting socket is pinhole-shaped; in the opening of the connecting box body, the pinhole-shaped connecting socket is arranged parallel to the insertion direction of the plug, a plurality of second cantilever beam clips parallel to the insertion direction of the plug are arranged on the box body component, and a plurality of guide grooves parallel to the insertion direction of the plug are arranged on the end cover component.

[0013] In some embodiments, a plurality of groups of first positioning spikes are disposed on the bottom outer end surface of the box body component, a plurality of groups of second positioning spikes are disposed on the side of the external assembly plate facing the box body component, and the first positioning spikes and the second positioning spikes are disposed opposite to each other.

[0014] In some embodiments, a plurality of observation and process through holes are disposed on the external assembly board.

[0015] Applying the technical solution of the present application, the electric blanket plug connector includes: an end cover component, a box body component, a circuit board component and an external assembly board; the end cover component and the box body component are both integral injection molding structures, the two are snap-fitted and installed, and snap-fitted to form a connection box body with an opening on one side; the circuit board component is installed in the connection box body, and a connection socket is provided on the circuit board component, and the connection socket is installed at the opening of the connection box body; the external assembly board is integral injection molding, and a plurality of fixing columns are provided on it, and the fixing columns pass through the blanket body of the electric blanket and then penetrate into the bottom of the box body component, and snap-fit ​​with the box body component; a hollow hole is provided on the side of the box body component facing the external assembly board, and the circuit board component is electrically connected to the heating circuit in the blanket body through the hollow hole. The present application utilizes an integral injection molding end cover component, a box body component and an external assembly board, and utilizes the snap-fit ​​installation of the end cover component and the box body component to realize the metal-free structure snap-fit ​​connection of the connection box body, and utilizes the snap-fit ​​connection of the external assembly board and the box body component to realize the metal-free structure installation of the electric blanket blanket body and the connection box body, which has a simple structure, is easy to assemble, and reduces the risk of leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0018] Figure 1 An axonometric view of an electric blanket plug connector according to an embodiment of the present application is shown;

[0019] Figure 2 A top view of an electric blanket plug connector according to an embodiment of the present application is shown;

[0020] Figure 3 A bottom view of the electric blanket plug connector according to an embodiment of the present application is shown;

[0021] Figure 4 A front view of an electric blanket plug connector according to an embodiment of the present application is shown;

[0022] Figure 5 A side view of an electric blanket plug connector according to an embodiment of the present application is shown;

[0023] Figure 6 A schematic diagram showing the connection between the external assembly board and the box body component of the electric blanket plug connector according to an embodiment of the present application is shown;

[0024] Figure 7 An axonometric view of an external assembly board of an electric blanket plug connector according to an embodiment of the present application is shown;

[0025] Figure 8 A bottom angle isometric view of the box body component of the electric blanket plug connector of an embodiment of the present application is shown;

[0026] Fig. 9 A top angle isometric view of a box body component of an electric blanket plug connector according to an embodiment of the present application is shown;

[0027] Fig.10 An axonometric view of an end cover component of an electric blanket plug connector according to an embodiment of the present application is shown;

[0028] Fig.11 A schematic diagram showing the connection between the end cover component and the box body component of the electric blanket plug connector according to an embodiment of the present application is shown;

[0029] The above drawings include the following reference numerals:

[0030] 100, end cover component; 101, first cantilever beam buckle; 102, reinforcing rib; 103, female stopper; 104, guide groove; 200, box body component; 201, clamping hole; 202, clamping block; 203, male stopper; 204, snap-on end cap; 205, clamping ring; 206, support platform; 207, second cantilever beam buckle; 208, first positioning thorn; 209, hollow hole; 300, external assembly plate; 301, fixing column; 302, conical plug; 303, second positioning thorn; 304, through hole; 400, opening. DETAILED DESCRIPTION

[0031] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0032] It should be noted that the following detailed descriptions are illustrative and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present application belongs.

[0033] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" may include both "above" and "below". The device may also be positioned in other different ways, rotated 90 degrees or in other orientations, and the spatially relative descriptions used herein are interpreted accordingly.

[0034] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0035] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0036] Figures 1 to 11 An embodiment of the electric blanket plug connector of the present application is schematically shown.

[0037] like Figures 1 to 11 As shown, the present application discloses an electric blanket plug connector, comprising: an end cover component 100, a box body component 200, a circuit board component (not shown) and an external assembly board 300. The end cover component 100, the box body component 200 and the external assembly board 300 are all integrally injection molded structures of insulating materials.

[0038] The end cover component 100 and the box body component 200 are snap-fitted and installed to form a connecting box body with an opening on one side. The circuit board component is installed in the connecting box body. The circuit board component is provided with a connecting socket, and the connecting socket is installed at the opening 400 of the connecting box body to be electrically connected to the inserted plug. A plurality of fixing columns 301 are provided on the external assembly board 300. The fixing columns 301 pass through the blanket body of the electric blanket and then penetrate into the bottom of the box body component 200, and snap-fit ​​with the box body component 200, thereby realizing the assembly of the electric blanket body and the connecting box body. A hollow hole 209 is provided on the side of the box body component 200 facing the external assembly board 300, and the circuit board component is electrically connected to the heating circuit in the blanket body through the hollow hole 209. As shown Figure 1 As shown, the blanket body of the electric blanket is clamped between the gap between the external assembly plate 300 and the box body component 200, and is passed through by the fixing column 301 of the external assembly plate 300 to achieve fixation.

[0039] Through the above-mentioned structural design, the present application sets up an integral injection molding structure of three insulating materials, namely, the end cover component 100, the box body component 200 and the external assembly plate 300. By utilizing the snap-fit ​​installation of the end cover component 100 and the box body component 200, a metal-free structure snap-fit ​​connection of the connecting box body is realized. By utilizing the snap-fit ​​connection of the external assembly plate 300 and the box body component 200, a metal-free structure installation of the electric blanket body and the connecting box body is realized. The connector embodiment of the present application has a simple structure and is easy to assemble. Since there are no metal connectors, it is not easy to cause a short circuit due to the extrusion and collapse of the metal connectors or rust over time, thereby reducing the risk of leakage of the electric blanket plug connector.

[0040] In some preferred embodiments of the present application, Fig.10 As shown, a plurality of first cantilever beam buckles 101 are arranged on the inner side of the end cover component 100. Figure 8 and Fig. 9 As shown, a plurality of clamping holes 201 are provided on the box body component 200 corresponding to the first cantilever beam buckle 101. The inner wall of the clamping hole 201 is parallel to the insertion direction of the first cantilever beam buckle 101, and can guide the insertion of the first cantilever beam buckle 101. A clamping block 202 is provided on the inner wall of the clamping hole 201, and the clamping block 202 can be engaged with the first cantilever beam buckle 101 to achieve a clamping connection between the end cover component 100 and the box body component 200. The first cantilever beam buckle 101 and the clamping block 202 are engaged by a pushing motion, and the contact time is short, so quick installation can be achieved. The connection diagram of the end cover component 100 and the box body component 200 is shown in FIG. Fig.11 shown.

[0041] In some preferred embodiments of the present application, the first cantilever beam buckle 101 is provided with two groups, namely Fig.10 As shown in , two of the first cantilever beam buckles 101 located above the end cover component 100 form a group, and two of the first cantilever beam buckles 101 located below the end cover component 100 form a group. The buckle directions of the two groups of first cantilever beam buckles 101 are set in opposite directions, so as to increase the fastening firmness and prevent the end cover component 100 from sliding in a certain direction and detaching from the box body component 200. In some other embodiments of the present application, each group of first cantilever beam buckles 101 may also include more first cantilever beam buckles 101. Different first cantilever beam buckles 101 may be set in different directions, for example, respectively set in three directions, not limited to opposite directions.

[0042] In some preferred embodiments of the present application, the first cantilever beam buckle 101 is a right-angle buckle, and its engaging surface is perpendicular to the cantilever beam portion of the first cantilever beam buckle 101. A reinforcing rib 102 is provided on the back side of the first cantilever beam buckle 101, and the reinforcing rib 102 is in a triangular or rectangular shape, which is used to enhance the rigidity of the cantilever beam portion and improve the engaging strength.

[0043] In some preferred embodiments of the present application, the buckled edges of the end cover component 100 and the box body component 200 are provided with a stopper structure. Fig.10 As shown, the buckling edge of the end cover component 100 is provided with a female stopper 103, and the buckling edge of the box body component 200 is provided with a male stopper 203. The two are engaged with each other through the stopper of the concave-convex structure, which can provide guidance for the assembly process, resist stress deformation, maintain the shape of the connection box body stable and firm, and improve the sealing level of the connection box body.

[0044] In some preferred embodiments of the present application, Figure 8 and Fig. 9 As shown, a plurality of snap-on end caps 204 are provided on the box body component 200 corresponding to the fixing columns 301. Figure 7 As shown, the end of the fixing column 301 is provided with an enlarged conical plug 302. The snap-fit ​​end cap 204 protrudes along the insertion direction of the fixing column 301. The top of the snap-fit ​​end cap 204 is provided with a snap ring 205 that snaps with the conical plug 302, which can stop the conical plug 302 from pushing, so as to realize the snap-fit ​​cooperation between the box body component 200 and the external assembly board 300. Figures 1 to 11 In the embodiment shown, three groups of the clamping end caps 204 and the fixing columns 301 are arranged in a uniformly distributed manner at different positions of the connecting box body. Figure 6 shown.

[0045] In some preferred embodiments of the present application, a plurality of support platforms 206 are provided in the box body component 200. The first cantilever beam buckle 101 and the fixing column 301 are both provided around the support platform 206. The support platform 206 is used to support the circuit board component together to position the circuit board component in the connection box body. Thus, the position of the circuit board component is stabilized, the circuit stability is improved, the collision caused by the shaking of the circuit board component is reduced, and the safety and service life of the connector are improved.

[0046] In some preferred embodiments of the present application, the connection socket is pinhole-shaped. In the opening 400 of the connection box body, the pinhole-shaped connection socket is arranged parallel to the insertion direction of the plug. The box body component 200 is provided with a plurality of second cantilever beam buckles 207 parallel to the plug insertion direction. The second cantilever beam buckles 207 are used to achieve snap-fit ​​fixation after the plug is inserted, to prevent the plug from falling out, and to improve the connection stability. The end cover component 100 is provided with a plurality of guide grooves 104 parallel to the plug insertion direction. The guide grooves 104 are used to provide guidance for the insertion of the plug so that the plug can be accurately connected to the connection socket. Figure 8 and Fig. 9 As shown, three sides of the second cantilever beam buckle 207 are perforated and arranged parallel to the wall surface of the box body component 200 .

[0047] In some preferred embodiments of the present application, the circuit board component includes a positioning block, which is formed by encapsulating the circuit structure of the circuit board with an insulating material and has a certain hardness, and can achieve waterproof protection of the circuit structure of the circuit board so that the electric blanket can be washed as a whole. The positioning block cooperates with the support platform 206 to achieve positioning. For example, a corresponding concave-convex structure is formed between the positioning block and the support platform 206 to achieve bite positioning. A pinhole-shaped connection socket is provided on the side of the positioning block facing the opening 400 of the connection box body. The connection socket can be a three-wire connection socket.

[0048] In some preferred embodiments of the present application, Figure 8 As shown, the outer end surface of the bottom of the box body 200 is provided with a plurality of first positioning spikes 208. Figure 7 As shown, the external assembly plate 300 is provided with a plurality of groups of second positioning spikes 303 on one side facing the box body component 200. The first positioning spikes 208 and the second positioning spikes 303 are arranged facing each other, and can be embedded in the blanket body of the electric blanket together, reducing the tearing caused by the displacement of the blanket body relative to the fixing column 301, improving the connection strength and stability between the connector and the blanket body of the electric blanket, and extending the service life of the electric blanket.

[0049] In some preferred embodiments of the present application, Figure 8 As shown, the external assembly board 300 is provided with a plurality of observation and process through holes 304. The through holes 304 can be used to observe the state of the electric blanket body inside and detect electric blanket failures in time. In addition, the through holes 304 can also accelerate the cooling inside the external assembly board 300 during injection molding and reduce the stress deformation degree of the external assembly board 300. Since the external assembly board 300 needs to press and fix the electric blanket body on the connecting box body, it needs to reach a certain thickness. Therefore, the cooling effect of the through holes 304 is very important for the molding of the external assembly board 300, which can ensure that the external assembly board 300 is accurately molded to achieve reliable clamping with the box body components.

[0050] In summary, the electric blanket plug connector of the embodiment of the present application includes: an end cover component 100, a box body component 200, a circuit board component and an external assembly board 300; the end cover component 100 and the box body component 200 are both integral injection-molded structures, and the two are snap-fitted and installed to form a connecting box body with an opening 400 on one side; the circuit board component is installed in the connecting box body, and a connecting socket is provided on the circuit board component, and the connecting socket is installed at the opening 400 of the connecting box body; the external assembly board 300 is integrally injection-molded, and a plurality of fixing columns 301 are provided thereon, and the fixing columns 301 pass through the blanket body of the electric blanket and then penetrate into the bottom of the box body component 200, and are snap-fitted with the box body component 200; a hollow hole 209 is provided on the side of the box body component 200 facing the external assembly board 300, and the circuit board component is electrically connected to the heating circuit in the blanket body through the hollow hole 209. The present application utilizes an end cover component 100, a box body component 200 and an external assembly plate 300 that are integrally injection molded, and utilizes the snap-fit ​​installation of the end cover component 100 and the box body component 200 to achieve a metal-free structure snap-fit ​​connection of the connecting box body, and utilizes the snap-fit ​​connection of the external assembly plate 300 and the box body component 200 to achieve a metal-free structure installation of the electric blanket body and the connecting box body, which has a simple structure, is easy to assemble, and reduces the risk of leakage.

[0051] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An electric blanket plug connector, characterized in that: include: An end cover component, a box body component, a circuit board component and an external assembly board, wherein the end cover component, the box body component and the external assembly board are all one-piece injection-molded structures made of insulating materials; The end cover component and the box body component are installed in a snap-fitting manner to form a connecting box body with an opening on one side; the circuit board component is installed in the connecting box body, and a connecting socket is provided on the circuit board component, and the connecting socket is installed at the opening of the connecting box body; a plurality of fixing columns are provided on the external assembly board, and the fixing columns pass through the blanket body of the electric blanket and then penetrate into the bottom of the box body component and are snap-fitted with the box body component; a hollow hole is provided on the side of the box body component facing the external assembly board, and the circuit board component is electrically connected to the heating circuit in the blanket body through the hollow hole.

2. The electric blanket plug connector according to claim 1, characterized in that: A plurality of groups of first cantilever beam buckles are arranged on the inner side of the end cover component, a plurality of clamping holes are arranged on the box body component corresponding to the first cantilever beam buckles, the inner walls of the clamping holes are parallel to the insertion direction of the first cantilever beam buckles, and a clamping block engaged with the first cantilever beam buckles is arranged on the inner wall of the clamping hole.

3. The electric blanket plug connector according to claim 2, characterized in that: The first cantilever beam buckles are provided in two groups, the buckling directions of the two groups of the first cantilever beam buckles are arranged in opposite directions, and each group of the first cantilever beam buckles includes a plurality of the first cantilever beam buckles.

4. The electric blanket plug connector according to claim 2, characterized in that: The first cantilever beam buckle is a right-angle buckle, and its engaging surface is perpendicular to the cantilever beam. A reinforcing rib is arranged on the back side of the first cantilever beam buckle, and the reinforcing rib is in a triangular or rectangular shape.

5. The electric blanket plug connector according to claim 1, characterized in that: The buckled edges of the end cover component and the box body component are provided with a stop structure.

6. The electric blanket plug connector according to claim 1, characterized in that: The box body component is provided with a plurality of snap-on end caps corresponding to the fixing column, the end of the fixing column is provided with an enlarged conical plug, the snap-on end cap protrudes along the insertion direction of the fixing column, and the top of the snap-on end cap is provided with a snap ring snapped with the conical plug.

7. The electric blanket plug connector according to claim 2, characterized in that: A plurality of support platforms are arranged in the box body component, the first cantilever beam buckle and the fixing column are arranged around the support platforms, and the support platforms jointly support the circuit board component to position the circuit board component in the connection box body.

8. The electric blanket plug connector according to claim 7, characterized in that: The connecting socket is pinhole-shaped; in the opening of the connecting box body, the pinhole-shaped connecting socket is arranged parallel to the insertion direction of the plug, the box body component is provided with a plurality of second cantilever beam buckles parallel to the insertion direction of the plug, and the end cover component is provided with a plurality of guide grooves parallel to the insertion direction of the plug.

9. The electric blanket plug connector according to claim 1, characterized in that: The bottom outer end surface of the box body component is provided with multiple groups of first positioning spikes, and the side of the external assembly plate facing the box body component is provided with multiple groups of second positioning spikes, and the first positioning spikes and the second positioning spikes are arranged opposite to each other.

10. The electric blanket plug connector according to claim 1, characterized in that: The external assembly board is provided with a plurality of observation and process through holes.

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