Structure of fixed charging DC head

By designing the limiting clamp assembly and the support base assembly, the problems of low assembly efficiency and poor heat dissipation of the charging DC fixing structure are solved, achieving stable fixing and efficient heat dissipation of the DC head body, simplifying the structure and improving assembly efficiency.

CN224357515UActive Publication Date: 2026-06-16NINGBO DAMAN ELECTRIC CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO DAMAN ELECTRIC CO LTD
Filing Date
2025-06-12
Publication Date
2026-06-16

AI Technical Summary

Technical Problem

Existing fixed-structure charging DC systems have low assembly efficiency and are not conducive to heat dissipation.

Method used

The design adopts a limiting clamp assembly and a support base assembly. The DC head body is fixed by the slot and limiting vertical ribs to ensure that it is supported and limited at the front, back and bottom. At the same time, a gap is left in the mounting slot to facilitate heat dissipation. The casing charging port design maintains the integrity of the whole.

Benefits of technology

The assembly stability and heat dissipation efficiency of the DC head body have been improved, the structure has been simplified, the assembly efficiency has been increased, and it is easier to disassemble and maintain later.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a structure of fixed charging DC head, aims at providing a structure of fixed charging DC head that improves assembly efficiency and heat dissipation efficiency. It includes mounting seat, and mounting seat is equipped with installation groove, and installation groove is connected with DC head body, and DC head body is equipped with charging slot, and mounting seat sleeve joint has the shell, and the shell is equipped with the charging mouth, and the charging mouth is opposite arrangement with charging slot, and the limiting pair of clamp components, and the limiting pair of clamp components are connected with installation groove, and the limiting pair of clamp components are equipped with the card slot, and DC head body is connected with the card slot, and the limiting pair of clamp components and the side of DC head body and top are pasted and connect, and the limiting vertical muscle, and the limiting vertical muscle is connected with mounting seat, and the limiting vertical muscle and the rear end of DC head body are pasted and connect, and the support seat component, and the support seat component is equipped with the cooperation face, and the cooperation face and the front end of DC head body and bottom are pasted and connect. The utility model has the beneficial effect that improves the overall nature and assembly stability of DC head body fixation, enhances the structural functionality and simplifies the structure, and guarantees the benign heat dissipation of DC head.
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Description

Technical Field

[0001] This utility model relates to the field of vacuum cleaner manufacturing technology, and in particular to a structure for a fixed charging DC head. Background Technology

[0002] Among existing vacuum cleaners, handheld vacuum cleaners are gradually gaining popularity in home and car applications due to their small size and ease of use. In particular, battery-powered cordless handheld vacuum cleaners are free from the limitations of cord length and can flexibly clean every corner. Existing charging devices are generally divided into two types: pedestal charging devices and wall-mounted charging devices. During charging, the power adapter is connected to the charging DC head on the vacuum cleaner to supply power to the connected charging contacts.

[0003] Chinese Patent Publication No.: CN 206239335 U, Publication Date: June 13, 2017. This utility model proposes a charging DC socket structure for a handheld vacuum cleaner, comprising: a complete machine and a handheld vacuum cleaner detachably connected to the complete machine, with a charging DC socket on the handheld vacuum cleaner. The shortcomings of this technical solution are: the charging DC socket is wrapped and fixed by a fixing seat and a mounting seat, resulting in reduced heat dissipation efficiency; simultaneously, the mounting seat requires multiple bolts for tool fixation, leading to low assembly efficiency of the DC socket.

[0004] In summary, existing DC charging fixed structures suffer from low assembly efficiency and poor heat dissipation. Utility Model Content

[0005] The present invention aims to overcome the shortcomings of existing fixed charging DC heads, such as low assembly efficiency and poor heat dissipation, and provides a fixed charging DC head structure that improves assembly efficiency and heat dissipation effectiveness.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A structure for a fixed charging DC head, including

[0008] Mounting base, the mounting base has a mounting slot, the mounting slot is connected to a DC head body, the DC head body has a charging slot, the mounting base is fitted with a housing, the housing has a charging port, the charging port and the charging slot are arranged opposite to each other.

[0009] The limiting clamp assembly is connected to the mounting slot. The limiting clamp assembly is provided with a slot, and the DC head body is engaged with the slot. The limiting clamp assembly is in contact with the side and top of the DC head body.

[0010] The limiting vertical rib is connected to the mounting base and is attached to the rear end of the DC head body;

[0011] The support base assembly has a mating surface that is in contact with the front end and bottom of the DC head body.

[0012] The DC head is installed in the mounting slot of the mounting base. A support assembly connects to the mounting slot to support the bottom of the DC head, leaving a gap between the DC head and the bottom of the mounting slot to facilitate heat dissipation from the DC head surface. The mating surface of the support assembly is in contact with the bottom and front face of the DC head. With the help of limiting vertical ribs, the front, back, and bottom of the DC head are supported and limited. The limiting clamp assembly uses a slot to engage the DC head, thereby limiting the sides and ends of the DC head. The DC head is fully limited by inserting it into the slot. Simultaneously, the limiting vertical ribs ensure the tightness of the mounting base's fit to the housing while also limiting the DC head, thus increasing structural functionality. Charging can be performed from the outside through the housing's charging port, maintaining the overall integrity of the housing's appearance. This achieves the effects of improving the overall fixation and assembly stability of the DC head, enhancing structural functionality while simplifying the structure, increasing assembly efficiency, facilitating later disassembly and maintenance, and ensuring good heat dissipation of the DC head.

[0013] Preferably, the limiting clamp assembly includes a left clamp rod and a right clamp rod. One end of the left clamp rod is connected to the bottom of the mounting groove, and the other end is connected to a left limiting block. One end of the right clamp rod is connected to the bottom of the mounting groove, and the other end is connected to a right limiting block. The left and right limiting blocks are arranged in a mirror-symmetrical manner. The slot is the enclosed space of the left and right clamp rods, the left and right limiting blocks. The left and right clamp rods are connected to the bottom of the mounting groove, clamping and fixing the DC head body on both sides. The DC head body is inserted between the left and right clamp rods by overcoming stress and is fixed in the slot enclosed by the structure. The left and right limiting blocks are subjected to force and then reset, preventing the DC head body from moving vertically. The width of the left and right clamp rods, the left and right limiting blocks is smaller than the width of the DC head body, reducing the coverage area and ensuring heat dissipation efficiency. This achieves the effect of improving the assembly stability of the DC head and enhancing heat dissipation efficiency.

[0014] Preferably, the end faces of both the left and right limiting blocks are designed as guide ramps, with the guide ramps on both sides forming an open V-shape. The guide ramps of the left and right limiting blocks are arranged opposite each other and open outwards (outside the slot), allowing the DC head to enter the slot guided by the guide ramps and improving assembly smoothness. This achieves the effect of improving the assembly efficiency of the DC head.

[0015] Preferably, both the left and right clamping rods are connected to several reinforcing ribs, which are connected to the bottom of the mounting groove. Several reinforcing ribs are also connected to the outer sides of the left and right clamping rods, increasing the connection strength between the left and right clamping rods and the mounting groove, and preventing breakage during assembly. This achieves the effect of improving structural stability and connection strength.

[0016] Preferably, the support assembly includes a bracket and a limiting strip. The bracket connects to the bottom of the mounting groove, one side of the limiting strip connects to the bracket, the other side connects to the wall of the mounting groove, and the lower end face of the limiting strip connects to the bottom of the mounting groove. The mating surfaces include mating surface one and mating surface two. Mating surface one is the upper end face of the bracket, and mating surface two is the front end face of the limiting strip. The bracket and limiting strip are connected as a single unit and fixed to the mounting groove. The limiting strip connects both the wall and bottom of the mounting groove, making the connection of the support assembly more stable. Mating surface one and mating surface two fit and fix the end face and bottom face of the DC head body through mating grooves for quick assembly. This improves the assembly stability and positioning efficiency of the DC head.

[0017] Preferably, the upper end face of the limiting strip is configured as a second guide slope, which slopes downwards towards the bracket. This second guide slope on the upper end face of the limiting strip allows the front end of the DC head to quickly engage with the groove formed by the bracket and the limiting strip along the second guide slope, thereby further improving assembly efficiency.

[0018] Preferably, the support assembly includes a support strip that connects to the bottom of the mounting slot, with the bottom of the DC head body abutting against the support strip. The support strip in the support assembly supports the bottom of the DC's rear end, thus forming front-to-back support with the bracket, while allowing for heat dissipation space. This ensures high heat dissipation efficiency.

[0019] The beneficial effects of this utility model are: improving the comprehensiveness and assembly stability of DC head fixing; enhancing structural functionality while simplifying the structure; improving assembly efficiency and facilitating later disassembly and maintenance; and ensuring good heat dissipation of the DC head. Attached Figure Description

[0020] Figure 1 This is a perspective view of the utility model;

[0021] Figure 2 yes Figure 1 Exploded view;

[0022] Figure 3 yes Figure 2 Enlarged view of point A in the middle;

[0023] Figure 4 This is a sectional view of the connection between the mounting base and the housing;

[0024] Figure 5 yes Figure 4 Enlarged view of point B in the middle;

[0025] Figure 6 This is a diagram showing the usage state of this utility model.

[0026] In the diagram: 1. Mounting base, 2. Mounting slot, 3. DC head body, 4. Charging slot, 5. Housing, 6. Charging port, 7. Card slot, 8. Limiting vertical rib, 9. Left clamping rod, 10. Right clamping rod, 11. Left limiting block, 12. Right limiting block, 13. Guide slope one, 14. Reinforcing rib plate, 15. Bracket, 16. Limiting strip, 17. Mating surface one, 18. Mating surface two, 19. Guide slope two, 20. Support strip. Detailed Implementation

[0027] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this application or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0028] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0029] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of components illustrated in these embodiments do not limit the scope of this application. For ease of illustration, spatial relative terms such as “up,” “down,” “left,” and “right” are used in the embodiments to describe the relationship of one element or feature shown in the figures relative to another element or feature. It should be understood that, in addition to the orientations shown in the figures, spatial terms are intended to include different orientations of the device in use or operation. For example, if the device in the figure is inverted, an element described as being “below” other elements or features would be positioned “up” other elements or features. Thus, the exemplary term “down” can include both up and down orientations. The device may be positioned in other ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein can be interpreted accordingly. It should also be understood that, for ease of description, the dimensions of the various parts shown in the figures are not drawn to actual scale. Techniques, processes, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, processes, and equipment should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be discussed further in subsequent figures.

[0030] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this application. Example 1:

[0031] like Figure 1 , 4 As shown in Figure 6, a structure for fixing a DC charging head includes a mounting base 1, a mounting groove 2 connected to the mounting groove 2, a charging slot 4 on the DC charging head 3, a housing 5 fitted onto the mounting base 1, a charging port 6 on the housing 5, and the charging port 6 being arranged opposite to the charging slot 4; a limiting clamp assembly connected to the mounting groove 2, the limiting clamp assembly having a slot 7, the DC charging head 3 engaging with the slot 7, and the limiting clamp assembly being in contact with the side and top of the DC charging head 3; a limiting vertical rib 8 connected to the mounting base 1, the limiting vertical rib 8 being in contact with the rear end of the DC charging head 3; and a support base assembly having a mating surface that is in contact with the front end and bottom of the DC charging head 3.

[0032] like Figure 1 , 3As shown, the limiting clamp assembly includes a left clamp rod 9 and a right clamp rod 10. One end of the left clamp rod 9 is connected to the bottom of the mounting groove 2, and the other end of the left clamp rod 9 is connected to a left limiting block 11. One end of the right clamp rod 10 is connected to the bottom of the mounting groove 2, and the other end of the right clamp rod 10 is connected to a right limiting block 12. The left limiting block 11 and the right limiting block 12 are arranged in a mirror symmetrical manner. The slot 7 is the enclosed space of the left clamp rod 9, the right clamp rod 10, the left limiting block 11, and the right limiting block 12.

[0033] like Figure 1 As shown, the end faces of the left limiting block 11 and the right limiting block 12 are both set as guide slopes 13, and the guide slopes 13 on both sides are open in a figure-eight shape.

[0034] like Figure 1-3 As shown, both the left clamping rod 9 and the right clamping rod 10 are connected to several reinforcing ribs 14, and the reinforcing ribs 14 are connected to the bottom of the mounting groove 2.

[0035] like Figure 3 , 5 As shown, the support assembly includes a bracket 15 and a limiting strip 16. The bracket 15 is connected to the bottom of the mounting groove 2. One side of the limiting strip 16 is connected to the bracket 15, and the other side of the limiting strip 16 is connected to the groove wall of the mounting groove 2. The lower end face of the limiting strip 16 is connected to the bottom of the mounting groove 2. The mating surfaces include mating surface one 17 and mating surface two 18. Mating surface one 17 is the upper end face of the bracket 15, and mating surface two 18 is the front end face of the limiting strip 16.

[0036] like Figure 3 As shown, the upper end face of the limiting strip 16 is set as a guide slope 19, which is inclined downward toward the bracket 15.

[0037] like Figure 3 , 5 As shown, the support base assembly includes a support bar 20, which is connected to the bottom of the mounting groove 2, and the bottom of the DC head body 3 is in contact with the support bar 20.

[0038] like Figure 1-6 As shown: The end of the limiting vertical rib 8 has a chamfered structure at the connection with the side (e.g. Figure 3 (as shown), so that the DC head 3 can be smoothly inserted.

[0039] The outer sides of the left clamping rod 9 and the right clamping rod 10 are each connected to two reinforcing ribs 14 to ensure that the size of the slot 7 is sufficiently compatible with the size of the DC head body 3, while preventing the left clamping rod 9 and the right clamping rod 10 from breaking under force when the DC head body 3 is inserted.

[0040] DC head 3 is used to electrically connect (through conductive wire) the charging contacts (not shown in the figure) and the power adapter (not shown in the figure) so that the power adapter can be inserted into the charging port 6 and fixedly plugged into the charging slot 4 to supply power to the charging contacts for charging the vacuum cleaner.

[0041] When using: During assembly, pre-connect the DC head 3 to the charging contacts (not shown in the figure).

[0042] By inserting the DC head 3 into the slot 7 along the guide slope 13 and guide slope 2 19, the DC head 3 is tightly attached to the front and back by the limiting strip 16 and the limiting vertical rib 8, the upper and lower parts are limited by the bracket 15, the limiting block 11 and the right limiting block 12, and the left and right parts are limited by the left clamping rod 9 and the right clamping rod 10. Thus, the DC head 3 is fully limited and connected to the mounting base 1.

[0043] The charging port 6 is aligned with the charging slot 4 by fitting the sleeve 5 together (e.g., ...). Figure 6 As shown in the image, the vacuum cleaner can be charged via an external power adapter.

[0044] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A structure for a fixed charging DC head, characterized in that, include Mounting base (1), the mounting base (1) is provided with mounting groove (2), the mounting groove (2) is connected to DC head body (3), the DC head body (3) is provided with charging slot (4), the mounting base (1) is fitted with a shell (5), the shell (5) is provided with charging port (6), the charging port (6) is arranged opposite to the charging slot (4). The limiting clamp assembly is connected to the mounting groove (2). The limiting clamp assembly is provided with a slot (7). The DC head body (3) is engaged with the slot (7). The limiting clamp assembly is in contact with the side and top of the DC head body (3). Limiting vertical rib (8), the limiting vertical rib (8) is connected to the mounting base (1), and the limiting vertical rib (8) is attached to the rear end of the DC head body (3); The support base assembly has a mating surface that is in contact with the front end and the bottom of the DC head body (3).

2. The structure of a fixed charging DC head according to claim 1, characterized in that, The limiting clamp assembly includes a left clamp rod (9) and a right clamp rod (10). One end of the left clamp rod (9) is connected to the bottom of the mounting groove (2), and the other end of the left clamp rod (9) is connected to a left limiting block (11). One end of the right clamp rod (10) is connected to the bottom of the mounting groove (2), and the other end of the right clamp rod (10) is connected to a right limiting block (12). The left limiting block (11) and the right limiting block (12) are arranged in a mirror symmetrical manner. The slot (7) is the enclosed space of the left clamp rod (9), the right clamp rod (10), the left limiting block (11), and the right limiting block (12).

3. The structure of a fixed charging DC head according to claim 2, characterized in that, The end faces of the left limiting block (11) and the right limiting block (12) are both set as guide slopes (13), and the guide slopes (13) on both sides are open in a figure-eight shape.

4. The structure of a fixed charging DC head according to claim 3, characterized in that, Both the left clamp (9) and the right clamp (10) are connected to several reinforcing ribs (14), and the reinforcing ribs (14) are connected to the bottom of the mounting groove (2).

5. The structure of a fixed charging DC head according to claim 1, characterized in that, The support assembly includes a bracket (15) and a limiting strip (16). The bracket (15) is connected to the bottom of the mounting groove (2). One side of the limiting strip (16) is connected to the bracket (15), and the other side of the limiting strip (16) is connected to the wall of the mounting groove (2). The lower end face of the limiting strip (16) is connected to the bottom of the mounting groove (2). The mating surface includes mating surface one (17) and mating surface two (18). The mating surface one (17) is the upper end face of the bracket (15), and the mating surface two (18) is the front end face of the limiting strip (16).

6. The structure of a fixed charging DC head according to claim 5, characterized in that, The upper end face of the limiting strip (16) is set as a guide slope two (19), and the guide slope two (19) is inclined downward toward the bracket (15).

7. The structure of a fixed charging DC head according to claim 1, characterized in that, The support assembly includes a support strip (20), which is connected to the bottom of the mounting groove (2), and the bottom of the DC head body (3) is in contact with the support strip (20).