Direct-current power supply
By designing a switchable second switch and a DC power supply of 12V lithium battery, the problem of low efficiency and safety risks of DC power supply in the lack of 220V environment is solved, and efficient forward and reverse switching of the motor is achieved and easy to operate.
Patent Information
- Application Number
- CN202420635348.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-29
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-03-29
AI Technical Summary
In some scenarios, such as outdoors or in closed environments, a 220V AC socket cannot be found, and the positive and negative poles of traditional DC power adapters need to be unplugged multiple times, which is inefficient in use, cumbersome process, and safety risks, such as sparks and Short circuit risk.
A DC power supply is designed, including a housing, a battery, a first switch, a second switch and a terminal. The second switch can be switched between two gears to achieve rapid switching between the positive and negative poles of the battery, through indicator lights and fuses. Improve safety and adopt 12V lithium battery and six-leg three-speed self-locking button switch to simplify operation.
It realizes efficient and quick switching of the forward and reverse motor without relying on a 220V socket, simplifies the operation process, improves safety and convenience of use, and avoids safety risks in traditional methods.
Smart Images
Figure CN222262200U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of power supply equipment, in particular to a direct current power supply. Background Art
[0002] At present, if you need to connect a DC motor to a power source and realize its forward or reverse rotation, you need a DC power adapter to adjust to the rated working voltage of the DC motor. However, this device generally needs to be connected to 220V AC to work. In some test scenarios, such as the motor test of a glass lifter, the motor has two positive or negative poles of the DC power adapter that cannot be seen by observing the color of the motor power line. When the motor needs to be connected to the corresponding two motor power lines, then: any two wires of the motor power line are randomly connected to the positive and negative poles of the power source → the DC power adapter is connected to 220V DC → the DC power adapter is adjusted to the rated working voltage of the motor or below the rated working voltage → the motor rotates → the motor needs to realize forward (or reverse) rotation again → turn off the voltage output of the DC power adapter → the positive and negative poles of the DC power adapter are swapped → power on → the motor realizes forward (or reverse) rotation, thereby determining the positive and negative poles.
[0003] However, the above process has the following problems: 1. In some scenarios, such as outdoors, in a closed environmental cabin, etc., it is impossible to find a 220V AC socket; 2. The positive and negative power cords of the DC power adapter need to be plugged and unplugged multiple times, which makes the use of the DC power adapter inefficient and the process cumbersome; 3. There are safety issues in the plugging and unplugging process. First, if the operation is improper (for example, the DC power adapter is not powered off for plugging and unplugging), sparks will be generated. Secondly, if the two DC power adapter power cords touch each other, there is a risk of short circuit. Utility Model Content
[0004] The purpose of the present application is to provide a direct current power supply to achieve efficient and quick switching of positive and negative poles.
[0005] The purpose of this application is achieved through the following technical solutions:
[0006] A DC power supply comprises: a housing, a battery, a first switch, a second switch, a first terminal and a second terminal, wherein the battery is installed in the housing, the positive electrode of the battery is connected to the first switch, the first switch is connected to the second switch, the negative electrode of the battery is connected to the second switch, and the second switch is connected to the first terminal and the second terminal respectively;
[0007] Among them, the second switch can be switched between a first gear and a second gear. When the second switch is switched to the first gear, the positive electrode of the battery can be electrically connected to the first terminal, and the negative electrode of the battery can be electrically connected to the second terminal; when the second switch is switched to the second gear, the positive electrode of the battery can be electrically connected to the second terminal, and the negative electrode of the battery can be electrically connected to the first terminal.
[0008] In some embodiments of the present application, a fuse is further included, and the fuse is connected between the battery and the first switch.
[0009] In some embodiments of the present application, an indicator light is further included, which is electrically connected to the first terminal and the second terminal, respectively. When the second switch is switched between the first gear position and the second gear position, the color of the indicator light changes.
[0010] In some embodiments of the present application, the indicator light is installed in the housing, and the side wall of the housing on the side where the indicator light is installed is made of a transparent material.
[0011] In some embodiments of the present application, a handle is further included, and the handle is installed on the outer wall of the shell.
[0012] In some embodiments of the present application, the housing includes a shell body and a cover, the shell body is open on one side, and the cover is detachably installed at the opening of the shell body.
[0013] In some embodiments of the present application, the battery is a 12V lithium battery.
[0014] In some embodiments of the present application, a control ring is further included, the first switch is a button switch, and the first switch is arranged outside the housing.
[0015] In some embodiments of the present application, the second switch further includes a third gear. When the second switch is switched to the third gear, the second switch is disconnected, and the second switch is disposed outside the housing.
[0016] In some embodiments of the present application, the second switch is a six-pin three-speed self-locking button switch.
[0017] The DC power supply of the present application has a shell as a structure for accommodating internal components and plays a role in protecting the internal structure of the DC power supply. The battery can be used as a power supply, which can get rid of the traditional DC power supply's dependence on a 220V socket. The first switch serves as the main switch of the DC power supply and can turn the DC power supply on or off. The second switch can switch between a first gear and a second gear. When the second switch is in the first gear or the second gear, the first terminal and the second terminal will serve as a positive pole or a negative pole respectively, and by connecting to an external motor, the external motor can switch between forward rotation and reverse rotation. When switching, it is only necessary to control the second switch to switch the gear, without the need for the debugging process of the traditional DC power supply. The operation is simple, the use is convenient, and the safety is higher. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 is a three-dimensional diagram of the DC power supply of the present application;
[0019] Figure 2 is a schematic diagram of the internal structure of the DC power supply of the present application;
[0020] Figure 3 It is a schematic diagram of the three-speed adjustment of the second switch of the present application;
[0021] Figure 4 It is a schematic diagram of the internal structure of the DC power supply of the present application.
[0022] In the figure, 1. outer shell; 11. shell body; 12. cover; 2. battery; 3. first switch; 4. second switch; 41. first gear position; 42. second gear position; 43. third gear position; 5. first terminal; 6. second terminal; 7. fuse; 8. indicator light; 9. handle. DETAILED DESCRIPTION
[0023] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.
[0024] In the description of the present application, it should be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", etc. used in the present application to indicate the orientation or position relationship is based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.
[0025] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0026] like Figure 1-4 As shown, an embodiment of the present application proposes a DC power supply, including: a housing 1, a battery 2, a first switch 3, a second switch 4, a first terminal 5 and a second terminal 6, wherein the battery 2 is installed in the housing 1, the positive electrode of the battery 2 is connected to the first switch 3, the first switch 3 is connected to the second switch 4, the negative electrode of the battery 2 is connected to the second switch 4, and the second switch 4 is respectively connected to the first terminal 5 and the second terminal 6; wherein the second switch 4 can be switched between a first gear 41 and a second gear 42, when the second switch 4 is switched to the first gear 41, the positive electrode of the battery 2 can be electrically connected to the first terminal 5, and the negative electrode of the battery 2 can be electrically connected to the second terminal 6; when the second switch 4 is switched to the second gear 42, the positive electrode of the battery 2 can be electrically connected to the second terminal 6, and the negative electrode of the battery 2 can be electrically connected to the first terminal 5.
[0027] Based on the above technical solution, the DC power supply of the present application, the housing 1 as a structure for accommodating internal components, plays a role in protecting the internal structure of the DC power supply, the battery 2 can be used as a power supply, and can get rid of the dependence of the traditional DC power supply on the 220V socket, the first switch 3 as the main switch of the DC power supply, can turn on or off the DC power supply, the second switch 4 can be switched between the first gear 41 and the second gear 42, when the second switch 4 is in the first gear 41 or the second gear 42, the first terminal 5 and the second terminal 6 will be used as the positive pole or the negative pole respectively, and by connecting to the external motor, the external motor can be switched between forward and reverse rotation, and when switching, it is only necessary to control the second switch 4 to switch the gear, without the debugging process of the traditional DC power supply, simple operation, easy to use, and higher safety. Preferably, the housing 1 is made of PC endurance board, which has high reliability and low cost.
[0028] In some embodiments of the present application, Figure 2 , 4As shown, it also includes a fuse 7, which is connected between the battery 2 and the first switch 3. The fuse 7 is installed inside the DC power supply. If a short circuit occurs, the power line, the battery 2, the motor and other components can be protected, thereby improving the overall safety of the DC power supply.
[0029] In some embodiments of the present application, Figure 2 , 4 As shown, it also includes an indicator light 8, which is electrically connected to the first terminal 5 and the second terminal 6 respectively. When the second switch 4 switches between the first gear position 41 and the second gear position 42, the color of the indicator light 8 changes. The indicator light 8 can clearly feedback the current gear position of the second switch 4, so that the current forward connection or reverse connection can be judged according to the color of the lamp bead of the indicator light 8. Preferably, the indicator light 8 adopts an LED lamp, which has low power consumption, clear display and low cost.
[0030] Specifically, Figure 1 , 2 As shown, the indicator light 8 is installed in the housing 1, and the side wall of the housing 1 on which the indicator light 8 is installed is made of transparent material. Installing the indicator light 8 inside the housing 1 can effectively protect the indicator light 8 from damage, and in order to ensure that the staff can smoothly see the color of the indicator light 8 to determine whether it is connected positively or reversely, it is necessary to set one side wall where the indicator light 8 is installed as a transparent wall, so that the staff can see the color of the indicator light 8 through the housing 1, which will not affect the normal use of the DC power supply.
[0031] In some embodiments of the present application, Figure 1 , 2 As shown, it also includes a handle 9, which is installed on the outer wall of the housing 1. The handle 9 is arranged on the outer wall of the housing 1, which can effectively improve the portability of the DC power supply. The staff only needs to grab the handle 9 to pick up the DC power supply, which is convenient for carrying and taking.
[0032] In some embodiments of the present application, Figure 1 As shown, the housing 1 includes a housing body 11 and a cover 12. The housing body 11 is open on one side, and the cover 12 is detachably installed at the opening of the housing body 11. The housing 1 is made in a detachable form, so that the internal structure of the housing body 11 can be easily installed and repaired, and the normal use of the DC power supply will not be affected. The cover 12 is installed with the housing body 11 by fasteners, which is tightly connected and easy to operate. The cover 12 is preferably made transparent, and the indicator light 8 is correspondingly installed under the cover 12. The indicator light 8 can be seen through the transparent cover 12, which is convenient to use.
[0033] In some embodiments of the present application, Figure 2 , 4 As shown, the battery 2 is a 12V lithium battery. Since small DC motors in cars such as window lifter motors, hatchback electric lock motors, and side door electric lock motors are relatively common, the battery 2 of this application ultimately chooses a 12V lithium battery solution to improve adaptability.
[0034] In some embodiments of the present application, Figure 1 , 2 As shown, the first switch 3 is a button switch, and the first switch 3 is arranged outside the housing 1. After the button switch is pressed, the first switch 3 is connected, and when it is pressed again, the button switch pops up and is disconnected, which is convenient to use and simple to operate. In addition, the first switch 3 is arranged outside the housing 1, which is more convenient and quick to use.
[0035] In some embodiments of the present application, Figure 1-4 As shown, the second switch 4 also includes a third gear 43. When the second switch 4 is switched to the third gear 43, the second switch 4 is disconnected. The second switch 4 is arranged outside the housing 1. In addition to the two gears for realizing the forward and reverse rotation of the motor, the second switch 4 is also provided with a third gear 43 for stopping. By controlling the second switch 4 to switch to the third gear 43, the circuit can be controlled to be disconnected when the first switch 3 is not closed, which is more convenient to operate and safer, and there is no need to frequently operate the first switch 3. The overall structure is more reasonable.
[0036] Specifically, Figure 1-4 As shown, the second switch 4 is a six-pin three-gear self-locking button switch. The switch has a simple structure and a quick response. Different gears can be switched by simply toggling the lever of the button switch, and the forward, stop and reverse operations can be easily and quickly realized. It should be noted that the three gears of the button switch are preferably set in such a way that the third gear 43 is in the middle, and the first gear 41 and the second gear 42 are respectively set on both sides of the third gear 43. This setting can ensure that no matter whether the motor is forward or reverse, it can be switched to the third gear 43 first, that is, the stop gear, when switching, so as to protect the motor and increase the service life.
[0037] In summary, in the DC power supply of the present application, the outer shell 1 serves as a structure for accommodating internal components and plays a role in protecting the internal structure of the DC power supply. The battery 2 can be used as a power supply, which can get rid of the dependence of the traditional DC power supply on the 220V socket. The first switch 3 serves as the main switch of the DC power supply and can turn the DC power supply on or off. The second switch 4 can switch between the first gear 41 and the second gear 42. When the second switch 4 is in the first gear 41 or the second gear 42, the first terminal 5 and the second terminal 6 will serve as the positive pole or the negative pole respectively, and by connecting to the external motor, the external motor can be switched between forward rotation and reverse rotation. When switching, it is only necessary to control the second switch 4 to switch the gear, and there is no need for the debugging process of the traditional DC power supply. The operation is simple, easy to use, and safer.
[0038] The above is only a preferred implementation of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present application. These improvements and substitutions should also be regarded as the scope of protection of the present application.
Claims
1. A DC power supply, characterized in that: include: A housing, a battery, a first switch, a second switch, a first terminal and a second terminal, wherein the battery is installed in the housing, the positive electrode of the battery is connected to the first switch, the first switch is connected to the second switch, the negative electrode of the battery is connected to the second switch, and the second switch is connected to the first terminal and the second terminal respectively; Wherein, the second switch can be switched between a first gear and a second gear. When the second switch is switched to the first gear, the positive electrode of the battery can be electrically connected to the first terminal, and the negative electrode of the battery can be electrically connected to the second terminal; when the second switch is switched to the second gear, the positive electrode of the battery can be electrically connected to the second terminal, and the negative electrode of the battery can be electrically connected to the first terminal.
2. The DC power supply according to claim 1, characterized in that: A fuse is also included, and the fuse is connected between the battery and the first switch.
3. The DC power supply according to claim 1, characterized in that: It also includes an indicator light, which is electrically connected to the first terminal and the second terminal respectively. When the second switch is switched between the first gear position and the second gear position, the color of the indicator light changes.
4. The DC power supply according to claim 3, characterized in that: The indicator light is installed in the shell, and the side wall of the shell on the side where the indicator light is installed is made of transparent material.
5. The DC power supply according to claim 1, characterized in that: Also included is a handle, which is mounted on the outer wall of the shell.
6. The DC power supply according to claim 1, characterized in that: The shell comprises a shell body and a cover, wherein the shell body is opened on one side, and the cover is detachably mounted on the opening of the shell body.
7. The DC power supply according to claim 1, characterized in that: The battery is a 12V lithium battery.
8. The DC power supply according to claim 1, characterized in that: The first switch is a button switch, and the first switch is arranged outside the housing.
9. The DC power supply according to claim 1, characterized in that: The second switch also includes a third gear. When the second switch is switched to the third gear, the second switch is disconnected. The second switch is arranged outside the housing.
10. The DC power supply according to claim 9, characterized in that: The second switch is a six-pin three-speed self-locking button switch.