Combined type small transformer for household appliances
By designing a modular miniature transformer, the problem of appliance transformers occupying sockets was solved, achieving efficient use of sockets and conversion between multiple voltage standards, thus improving the user experience.
Patent Information
- Application Number
- CN202423011040.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-06
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-12-06
AI Technical Summary
Existing transformers for household appliances are too large, making it impossible to use adjacent sockets, and they can only output one voltage standard, which is inconvenient.
A modular miniature transformer for household appliances has been designed, comprising a primary transformer and a sliding sleeve, a return spring, a locking block, and a locking slot structure to allow for plug position adjustment; as well as a limit spring, a baffle, and a contact seat structure to enable the installation of a secondary transformer and voltage conversion.
It enables the efficient use of sockets and the conversion of multiple voltage standards, improving ease of use and flexibility.
Smart Images
Figure CN223501678U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of household appliances, and in particular to a combined small transformer for household appliances. Background Technology
[0002] Household appliances refer to electrical equipment used in homes and similar places. They utilize electrical energy to perform various household functions, such as cooking, cleaning, and entertainment. These devices greatly improve the convenience and comfort of family life and have become an indispensable part of modern families.
[0003] Household appliances from different countries require different voltages to operate because each country has different power infrastructure standards. When some families purchase imported appliances, the appliances cannot be used due to the different voltage standards. In this case, a small combined transformer for household appliances is needed to convert the domestic voltage to the voltage standard required by the imported appliances.
[0004] Current appliance transformers, due to their internal transformers, are generally slightly larger than common wall-mounted power strips. In practice, when plugged directly into standard sockets, they sometimes render adjacent sockets unusable, resulting in low socket utilization and inconvenience. Furthermore, current appliance transformers typically only output one standard voltage. Families purchasing imported appliances often buy multiple imported appliances, and since different countries' appliances use different voltage standards, users need to purchase multiple appliance transformers of different standards, which is inconvenient. Therefore, a combined small appliance transformer is proposed to solve these problems. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a combined small transformer for household appliances, which aims to improve the problems in the prior art such as household appliance transformers causing adjacent sockets to be unusable and household appliance transformers generally only being able to output a standard voltage.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a combined small transformer for household appliances, comprising a primary transformer, a sliding sleeve fixedly connected to the left side of the primary transformer, a locking block fixedly connected to the inner wall of the sliding sleeve, a sliding round block elastically connected to the left inner wall of the sliding sleeve via a return spring, a locking groove formed on the outer periphery of the sliding round block, a connecting post fixedly connected to the left side of the sliding round block, and a connecting component provided on the left side of the connecting post, the connecting component being used to connect to a power socket.
[0007] As a further description of the above technical solution:
[0008] The primary transformer has a placement slot inside. A connecting contact point is provided on the left inner wall of the placement slot. Slide rails are fixedly connected to the front and rear inner walls of the placement slot. A limit groove is provided on the bottom inner wall of the placement slot. A baffle is elastically connected to the bottom inner wall of the limit groove through a limit spring. A secondary transformer is slidably connected inside the placement slot. Slide grooves are provided on the front and rear inner walls of the secondary transformer. A contact seat is provided on the left side of the secondary transformer.
[0009] As a further description of the above technical solution:
[0010] One end of the reset spring is fixedly connected to the inner wall of the left side of the sliding sleeve, and the other end of the reset spring is in contact with the left side of the sliding block. The outer periphery of the sliding block is slidably connected to the inside of the sliding sleeve.
[0011] As a further description of the above technical solution:
[0012] The outer periphery of the card block is engaged with the inside of the card slot, and the outer periphery of the connecting column is slidably connected to the left side of the sliding sleeve.
[0013] As a further description of the above technical solution:
[0014] The connection component includes a plug, the right side of which is fixedly connected to the left side of the connecting post, and a connecting wire is provided on the right side of the plug.
[0015] As a further description of the above technical solution:
[0016] The outer periphery of the connecting line is slidably connected to the inside of the connecting post and the sliding block, and the right end of the connecting line is electrically connected to the primary transformer.
[0017] As a further description of the above technical solution:
[0018] One end of the limiting spring is fixedly connected to the inner wall of the bottom end of the limiting groove, and the other end of the limiting spring is fixedly connected to the bottom end of the baffle. The outer periphery of the baffle is slidably connected to the inside of the limiting groove.
[0019] As a further description of the above technical solution:
[0020] The right side of the baffle is set as an inclined surface, and the left side of the baffle is in contact with the right side of the secondary transformer.
[0021] As a further description of the above technical solution:
[0022] The outer periphery of the slide rail is slidably connected to the inside of the slide groove, and the right side of the connecting contact point is in contact with the left side of the contact seat.
[0023] This utility model has the following beneficial effects:
[0024] 1. In this utility model, by setting a sliding block, a return spring, and a slot, the plug is pulled outward to release the locking block and slot, and the plug position is adjusted by rotating the plug, thereby conveniently changing the position of the primary transformer socket, making it easier to avoid adjacent sockets, and making it more convenient to use.
[0025] 2. In this utility model, by setting a limiting spring, baffle, contact seat and other mechanisms, the secondary transformer can be installed on the primary transformer by sliding the secondary transformer to the left. Thus, the installation of the secondary transformer can be rotated as needed, so that the equipment can convert and output voltages of multiple standards. Attached Figure Description
[0026] Figure 1 This is a front view of a combined small transformer for household appliances proposed in this utility model.
[0027] Figure 2 This is a front cross-sectional view of the sliding sleeve of a combined small transformer for household appliances proposed in this utility model.
[0028] Figure 3 This is a front cross-sectional view of the primary transformer of a combined small transformer for household appliances proposed in this utility model.
[0029] Figure 4 This is a schematic diagram of the left side of a two-stage transformer of a combined small transformer for household appliances proposed in this utility model.
[0030] Legend:
[0031] 1. Primary transformer; 2. Sliding sleeve; 3. Clamping block; 4. Return spring; 5. Sliding block; 6. Slot; 7. Connecting post; 8. Plug; 9. Connecting wire; 10. Placement slot; 11. Connecting contact point; 12. Slide rail; 13. Limiting slot; 14. Limiting spring; 15. Baffle; 16. Secondary transformer; 17. Slide groove; 18. Contact seat. Detailed Implementation
[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0033] Reference Figures 1-3This utility model provides an embodiment of a combined small transformer for household appliances, including a primary transformer 1. The primary transformer 1 contains an iron core and coils, capable of converting the national standard 220V voltage into the voltage required by electrical appliances. The primary transformer 1 also has a socket at its bottom for easy connection to household appliances. A sliding sleeve 2 is fixedly connected to the left side of the primary transformer 1. Four sets of locking blocks 3 are fixedly connected to the inner wall of the sliding sleeve 2, arranged in a ring at equal intervals inside the sliding sleeve 2. A sliding block 5 is elastically connected to the inner left side of the sliding sleeve 2 via a return spring 4. When the sliding block 5 is not under force, the return spring 4 will push the sliding block 5. One end of the return spring 4 is fixedly connected to the inner left side of the sliding sleeve 2, and the other end contacts the left side of the sliding block 5. The outer circumference of the sliding block 5 is slidably connected inside the sliding sleeve 2. 2. The sliding block 5 can only slide left and right along the inner wall of the sliding sleeve 2. The outer periphery of the sliding block 5 is provided with a slot 6. There are four sets of slots 6, which are distributed in a ring at equal intervals on the outer periphery of the sliding block 5. The outer periphery of the locking block 3 is locked into the inside of the slot 6, so that the sliding block 5 cannot rotate. The left side of the sliding block 5 is fixedly connected to a connecting post 7, which plays a fixed connection role. The outer periphery of the connecting post 7 is slidably connected to the left side of the sliding sleeve 2. A connecting component is provided on the left side of the connecting post 7. The connecting component is used to connect to a power socket. The connecting component includes a plug 8, which can be connected to a national standard power socket. The right side of the plug 8 is fixedly connected to the left side of the connecting post 7. A connecting wire 9 is provided on the right side of the plug 8. The outer periphery of the connecting wire 9 is slidably connected to the inside of the connecting post 7 and the sliding block 5. The right end of the connecting wire 9 is electrically connected to the primary transformer 1 to supply power to the primary transformer 1. At the same time, the primary transformer 1 will convert the voltage.
[0034] Reference Figure 1 , Figure 3 and Figure 4The first-stage transformer 1 has a placement slot 10 inside. A connecting contact point 11 is provided on the left inner wall of the placement slot 10. Slide rails 12 are fixedly connected to the front and rear inner walls of the placement slot 10. Two sets of slide rails 12 are arranged symmetrically. A limiting slot 13 is provided on the bottom inner wall of the placement slot 10. A baffle 15 is elastically connected to the bottom inner wall of the limiting slot 13 via a limiting spring 14. When the baffle 15 is not under force, the limiting spring 14 will push the baffle 15 upwards. One end of the limiting spring 14 is fixedly connected to the bottom inner wall of the limiting slot 13, and the other end is fixedly connected to the bottom of the baffle 15. The outer periphery of the baffle 15 is slidably connected to the inside of the limiting slot 13. The limiting slot 13 restricts the baffle 15 to slide only up and down along the inner wall of the limiting slot 13. The right side of the baffle 15 is set as an inclined surface. When the baffle 15 is subjected to force on the right side... The inclined surface of the baffle 15 will cause the baffle 15 to move downward. The secondary transformer 16 is slidably connected inside the placement groove 10. There are multiple types of secondary transformers 16. The various secondary transformers 16 have the same appearance but convert different voltages. The left side of the baffle 15 is in contact with the right side of the secondary transformer 16, preventing the secondary transformer 16 from sliding left and right. The inner walls of the front and rear sides of the secondary transformer 16 are provided with sliding grooves 17. There are two sets of sliding grooves 17, which are symmetrically arranged in front and behind the secondary transformer 16. The outer periphery of the slide rail 12 is slidably connected inside the sliding groove 17. The sliding groove 17 and the slide rail 12 prevent the secondary transformer 16 from moving up and down. The left side of the secondary transformer 16 is provided with a contact seat 18. The right side of the contact point 11 is in contact with the left side of the contact seat 18, so that the primary transformer 1 can supply power to the secondary transformer 16.
[0035] Working principle: When you want to change the interface direction of the primary transformer 1, pull the plug 8 outward. The plug 8 drives the connecting post 7 to move to the left, and the connecting post 7 drives the sliding block 5 to move to the left. The sliding block 5 compresses the return spring 4. At this time, the slot 6 disengages from the block 3. Rotate the plug 8 ninety degrees. At this time, the adjacent slot 6 and block 3 are opposite each other. Release the plug 8, the return spring 4 releases its compression, and pushes the sliding block 5 to move to the right. At this time, the slot 6 of the sliding block 5 re-engages with the block 3. At this time, the plug 8 and the primary transformer 1 cannot rotate relative to each other, thus changing the position of the socket. This makes it easier to avoid adjacent sockets and is more convenient to use. When it is desired to make the transformer compatible with electrical appliances of different voltage standards, a secondary transformer 16 with the required voltage is selected. The slide groove 17 of the secondary transformer 16 is aligned with the slide rail 12, and the secondary transformer 16 is slid to the left. At this time, the secondary transformer 16 presses the baffle 15 to the left, causing the baffle 15 to move downward and compress the limiting spring 14. When the contact seat 18 of the secondary transformer 16 contacts the connecting contact point 11, the secondary transformer 16 does not contact the top of the baffle 15. At this time, the baffle 15 bounces up under the action of the limiting spring 14, restricting the left and right sliding of the secondary transformer 16, thereby facilitating the replacement of the secondary transformer 16 and enabling the equipment to convert and output multiple voltages.
[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A modular small transformer for household appliances, comprising a primary transformer (1), characterized in that: A sliding sleeve (2) is fixedly connected to the left side of the primary transformer (1). A locking block (3) is fixedly connected to the inner wall of the sliding sleeve (2). A sliding round block (5) is elastically connected to the inner wall of the left side of the sliding sleeve (2) through a reset spring (4). A slot (6) is opened on the outer periphery of the sliding round block (5). A connecting post (7) is fixedly connected to the left side of the sliding round block (5). A connecting component is provided on the left side of the connecting post (7). The connecting component is used to connect to a power socket.
2. The combined small transformer for household appliances according to claim 1, characterized in that: The primary transformer (1) has a placement slot (10) inside. The inner wall of the left side of the placement slot (10) is provided with a connecting contact point (11). The inner walls of the front and rear sides of the placement slot (10) are fixedly connected with slide rails (12). The inner wall of the bottom end of the placement slot (10) is provided with a limiting groove (13). The inner wall of the bottom end of the limiting groove (13) is elastically connected with a baffle (15) through a limiting spring (14). The secondary transformer (16) is slidably connected inside the placement slot (10). The inner walls of the front and rear sides of the secondary transformer (16) are provided with slide grooves (17). The left side of the secondary transformer (16) is provided with a contact seat (18).
3. A combined small transformer for household appliances according to claim 1, characterized in that: One end of the reset spring (4) is fixedly connected to the inner wall of the left side of the sliding sleeve (2), and the other end of the reset spring (4) is in contact with the left side of the sliding block (5). The outer periphery of the sliding block (5) is slidably connected to the inside of the sliding sleeve (2).
4. A combined small transformer for household appliances according to claim 1, characterized in that: The outer periphery of the card block (3) is engaged inside the card slot (6), and the outer periphery of the connecting column (7) is slidably connected to the left side of the sliding sleeve (2).
5. A combined small transformer for household appliances according to claim 1, characterized in that: The connecting component includes a plug (8), the right side of which is fixedly connected to the left side of the connecting post (7), and a connecting wire (9) is provided on the right side of the plug (8).
6. A combined small transformer for household appliances according to claim 5, characterized in that: The outer periphery of the connecting line (9) is slidably connected to the inside of the connecting post (7) and the sliding block (5), and the right end of the connecting line (9) is electrically connected to the first-stage transformer (1).
7. A combined small transformer for household appliances according to claim 2, characterized in that: One end of the limiting spring (14) is fixedly connected to the inner wall of the bottom end of the limiting groove (13), and the other end of the limiting spring (14) is fixedly connected to the bottom end of the baffle (15). The outer periphery of the baffle (15) is slidably connected to the inside of the limiting groove (13).
8. A combined small transformer for household appliances according to claim 2, characterized in that: The right side of the baffle (15) is set as an inclined surface, and the left side of the baffle (15) is in contact with the right side of the secondary transformer (16).
9. A combined small transformer for household appliances according to claim 2, characterized in that: The outer periphery of the slide rail (12) is slidably connected to the inside of the slide groove (17), and the right side of the connecting contact point (11) is in contact with the left side of the contact seat (18).