Terminal structure of tractor
By introducing a snap-fit connection design between the cover and the terminal seat in the terminal structure of the traction device, and using high-temperature resistant materials, the safety hazards of the terminal structure are solved, and the safety performance and service life of the traction device are improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- MINZHUO ELECTRIC CO LTD
- Filing Date
- 2025-04-30
- Publication Date
- 2026-05-01
AI Technical Summary
The power terminal structure of the existing traction device is exposed, which poses a safety hazard at the connection between the outer casing and the terminal pieces and leads, affecting the service life and operational stability of the traction device.
A terminal structure including a terminal base, terminal piece, lead wire, and cover is designed. The connection between the terminal piece and the lead wire is sealed by the cover, and the cover and terminal base are made of high-temperature resistant plastic to improve safety performance.
It effectively isolates the terminal piece from the lead wire connection and from the housing, improving the safety performance and service life of the puller, while also facilitating installation and maintenance.
Smart Images

Figure CN224191290U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of traction device technology, and more specifically, to a terminal structure for a traction device. Background Technology
[0002] The drain actuator is a crucial component for ensuring the normal operation of a fully automatic washing machine, primarily controlling its drainage. Powered by a micro-motor and a gear reduction mechanism, the drain actuator retracts the traction rope fixed to the traction wheel, thereby opening the washing machine's drain valve connected to the other end of the traction wheel and achieving automatic drainage.
[0003] The power terminal structure of the traction device is used to connect to an external power source, providing operating voltage to the drainage traction device. The power terminal structure typically has two leads: a live wire and a neutral wire. The live and neutral wires are connected to corresponding terminal pieces on the power terminal structure, ensuring that external power can be transmitted normally to the internal circuitry of the traction device. However, in existing traction device power terminal structures, the terminal pieces and their connections to the two leads are exposed, causing direct contact between the terminal pieces and the traction device's outer casing (top cover). Since the traction device's outer casing (top cover) is made of ordinary, non-heat-resistant plastic, its safety performance during use is poor. The direct contact between the outer casing (top cover) and the energized terminal pieces and two leads poses a significant safety hazard and affects the traction device's performance and stability, thus impacting its service life. Utility Model Content
[0004] The purpose of this utility model is to overcome the shortcomings and deficiencies in the prior art and provide a terminal structure for a traction device. This terminal structure can seal the terminal piece and the connection between the terminal piece and the two leads, thereby solving the problem of safety hazards to the terminal structure caused by the high-temperature intolerant traction device housing, thus greatly improving the safety performance of the traction device and extending its service life.
[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a terminal structure for a traction device, characterized in that it includes a terminal base, a terminal piece, a lead wire, and a cover; the terminal base is connected to the bottom shell of the traction device; the terminal piece is disposed on the terminal base, and one end of the lead wire is connected to the terminal piece; the cover is disposed on the terminal base, covering the terminal piece and the connection between the terminal piece and the lead wire, and the other end of the lead wire passes through the cover and is connected to an external power source or an external circuit.
[0006] Specifically, the cover is snapped together with the terminal block. This design facilitates the opening and closing of the cover.
[0007] The bottom surface of the terminal block is provided with a positioning block, and a snap-fit groove is provided between the positioning block and the bottom surface.
[0008] The cover is equipped with a connecting post, and a hook is provided at the bottom of the connecting post. When the cover is connected to the terminal block, the cover descends along the positioning block via the connecting post, and the hook enters the latching groove and latches with the bottom surface of the terminal block, thus achieving a latching connection between the cover and the terminal block. When it is necessary to open the cover, the cover can be separated from the terminal block by directly operating the connecting post to make the hook disengage from the latching groove.
[0009] The terminal block is provided with a slot for easy installation of the cover, and the slot faces the wall of the terminal block.
[0010] The cover is provided with a post; when the cover is connected to the terminal block, the cover is inserted into the slot through the post, realizing quick installation of the cover. The post and slot of this utility model are equivalent to guide posts and guide grooves, which enable the cover to be quickly installed with the terminal block.
[0011] The terminal block has a positioning groove on its side wall facing the slot for positioning the cover; the insert post of the cover has a protrusion; when the cover is inserted into the slot through the insert post, the protrusion matches the positioning groove, achieving horizontal positioning of the cover. This structural design enables cover installation and positioning, improving installation stability.
[0012] The cover has a through hole for easy threading of the lead wire.
[0013] The terminal block is provided with conductive posts, which are connected to terminal pieces and leads. The leads are electrically connected to the terminal pieces through the conductive posts.
[0014] The cover and / or terminal block are made of high-temperature resistant plastic. This design allows the terminal block and / or cover to form a flame-retardant material, thereby further improving the safety performance of the tow unit.
[0015] This utility model's traction device features a cover design for its terminal structure. When the cover is closed with the terminal base, it seals the terminal pieces and their connections to the two leads, isolating them from the heat-sensitive traction device housing. This solves the safety hazard posed by the heat-sensitive housing to the terminal structure, significantly improving the traction device's safety performance and extending its service life. Furthermore, both the terminal base and / or the cover are made of heat-resistant plastic, forming a flame-retardant structure that further enhances the traction device's safety. The cover also facilitates installation and removal, allowing for convenient maintenance of the terminal base's internal components.
[0016] Compared with the prior art, the present invention has the following advantages and beneficial effects: The terminal structure of the traction device of the present invention can seal the terminal piece and the connection between the terminal piece and the two leads, so as to solve the problem of the safety hazard of the terminal structure caused by the high temperature resistant traction device shell, thereby greatly improving the safety performance of the traction device and extending the service life of the traction device. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the terminal structure of the traction device of this utility model;
[0018] Figure 2 This is a schematic diagram of the terminal block in the terminal structure of the traction device of this utility model. Figure 1 ;
[0019] Figure 3 This is a schematic diagram of the terminal block in the terminal structure of the traction device of this utility model. Figure 2 ;
[0020] Figure 4 This is a schematic diagram of the cover body in the terminal structure of the traction device of this utility model;
[0021] Figure 5 This is a schematic diagram of the traction device of this utility model;
[0022] Among them, 1 is the terminal block, 2 is the terminal piece, 3 is the lead wire, 4 is the cover, 5 is the bottom shell, 6 is the positioning block, 7 is the snap-fit groove, 8 is the connecting post, 9 is the snap hook, 10 is the slot, 11 is the insertion post, 12 is the positioning groove, 13 is the protrusion, 14 is the through hole, 15 is the conductive post, and 16 is the outer shell. Detailed Implementation
[0023] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. Example
[0024] like Figures 1 to 5 As shown, the terminal structure of the traction device of this utility model includes a terminal base 1, a terminal piece 2, a lead wire 3, and a cover 4. The terminal base 1 is connected to the bottom shell 5 of the traction device and is an integral structure. The terminal piece 2 is disposed on the terminal base 1. One end of the lead wire 3 is connected to the terminal piece 2. The cover 4 is disposed on the terminal base 1, covering the terminal piece 2 and the connection between the terminal piece 2 and the lead wire 3. The other end of the lead wire 3 passes through the cover 4 and is connected to an external power supply or an external circuit.
[0025] Specifically, to facilitate the opening and closing of the cover 4, it is snap-fitted to the terminal block 1. The bottom surface of the terminal block 1 has a positioning block 6, and a snap-fit groove 7 is provided between the positioning block 6 and the bottom surface. The cover 4 is provided with a connecting post 8, and a hook 9 is provided at the bottom of the connecting post 8. When the cover 4 is connected to the terminal block 1, the cover 4 descends along the positioning block 4 via the connecting post 8, and the hook 9 enters the snap-fit groove 7 and snaps into the bottom surface of the terminal block 1, thus achieving the snap-fit connection between the cover 4 and the terminal block 1. When it is necessary to open the cover, simply operate the connecting post 8 to disengage the hook 9 from the snap-fit groove 7, thereby separating the cover 4 from the terminal block 1.
[0026] The terminal block 1 of this invention is provided with a slot 10 for easy installation of the cover 4, the slot 10 facing the wall of the terminal block 1. The cover 4 is provided with a post 11; when the cover 4 is connected to the terminal block 1, the cover 4 is inserted into the slot 10 through the post 11, realizing quick installation of the cover 4. The post 11 and the slot 10 of this invention are equivalent to guide posts and guide grooves, which enable the cover 4 to be quickly installed with the terminal block 1.
[0027] The terminal block 1 of this invention has a positioning groove 12 on the side wall facing the slot 10 for positioning the cover 4, and a protrusion 13 is provided on the insertion post 11 of the cover 4; when the cover 4 is inserted into the slot 12 through the insertion post 11, the protrusion 13 matches the positioning groove 12 and is inserted, realizing the horizontal positioning of the cover 4. This structural design can realize the installation and positioning of the cover 4 and improve the stability of installation.
[0028] In addition, the cover 4 has a through hole 14 for easy threading of the lead wire. The terminal block 1 of this invention is provided with a conductive post 15, which is connected to the terminal piece 2 and the lead wire 3. The lead wire 3 is electrically connected to the terminal piece 2 through the conductive post 15. To further improve the safety performance of the traction device, the cover 4 and / or the terminal block 1 of this invention are made of high-temperature resistant plastic. This design allows the terminal block 1 and / or the cover 4 to form a flame-retardant body.
[0029] The terminal structure of this utility model's traction device features a cover 4. When the cover 4 is closed with the terminal base 1, it seals the terminal piece 2 and the connection points between the terminal piece 2 and the two leads 3, separating the terminal piece 2 and the connection points between the terminal piece 2 and the two leads 3 from the heat-sensitive traction device housing 16. This solves the safety hazard posed by the heat-sensitive traction device housing 16 to the terminal structure, thus greatly improving the safety performance and extending the service life of the traction device. Furthermore, both the terminal base 1 and / or the cover 4 are made of heat-resistant plastic, forming a flame-retardant structure, further enhancing the safety performance of the traction device. Simultaneously, the cover 4 facilitates installation and disassembly, allowing for convenient maintenance of the terminal base 1.
[0030] The above embodiments are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present utility model shall be considered equivalent substitutions and shall be included within the protection scope of the present utility model.
Claims
1. A terminal structure for a traction device, characterized in that: It includes a terminal block, a terminal piece, a lead wire, and a cover. The terminal block is connected to the bottom shell of the traction device. The terminal piece is disposed on the terminal block, and one end of the lead wire is connected to the terminal piece. The cover is disposed on the terminal block, covering the terminal piece and the connection between the terminal piece and the lead wire. The other end of the lead wire passes through the cover and is connected to an external power source or an external circuit.
2. The terminal structure of the traction device according to claim 1, characterized in that: The cover is snapped together with the terminal block.
3. The terminal structure of the traction device according to claim 2, characterized in that: The bottom surface of the terminal block is provided with a positioning block, and a snap-fit groove is provided between the positioning block and the bottom surface.
4. The terminal structure of the traction device according to claim 3, characterized in that: The cover is provided with a connecting post, and a hook is provided at the bottom of the connecting post. When the cover is connected to the terminal block, the cover descends along the positioning block through the connecting post, and the hook enters the snap-fit groove and snaps with the bottom surface of the terminal block, thereby realizing the snap-fit connection between the cover and the terminal block.
5. The terminal structure of the traction device according to claim 4, characterized in that: The terminal block is provided with a slot for easy installation of the cover, and the slot faces the wall of the terminal block.
6. The terminal structure of the traction device according to claim 5, characterized in that: The cover is provided with a pin; when the cover is connected to the terminal block, the cover is inserted into the slot through the pin, so as to realize the quick installation of the cover.
7. The terminal structure of the traction device according to claim 6, characterized in that: The terminal block has a positioning groove on the side wall facing the slot for positioning the cover; the insert post of the cover has a protrusion; when the cover is inserted into the slot through the insert post, the protrusion matches the positioning groove to achieve horizontal positioning of the cover.
8. The terminal structure of the traction device according to claim 1, characterized in that: The cover has a through hole for easy threading of the lead wire.
9. The terminal structure of the traction device according to claim 1, characterized in that: The terminal block is provided with conductive posts, which are connected to terminal pieces and leads. The leads are electrically connected to the terminal pieces through the conductive posts.
10. The terminal structure of the traction device according to claim 1, characterized in that: The cover and / or terminal block are made of high-temperature resistant plastic.