A ballast terminal

By designing the threaded rod and rotating knob structure of the ballast's outer protective shell and terminal block, the problem of poor terminal block clamping was solved, thus achieving wiring stability and ballast reliability.

CN224502368UActive Publication Date: 2026-07-14SUZHOU GUYUE PHOTOELECTRIC TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SUZHOU GUYUE PHOTOELECTRIC TECH CO LTD
Filing Date
2025-07-08
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

The existing ballast terminals do not clamp well during wiring, which can easily cause the wire to come loose and separate, affecting the use of the ballast.

Method used

A terminal block structure was designed, comprising a ballast outer protective shell, a junction box, a threaded groove, a threaded rod, and a rotating knob. The connection wire is secured by the cooperation of the threaded rod and the rotating knob, preventing it from coming loose.

Benefits of technology

This improves the stability of the wiring, prevents the connection wires from coming loose or separating, and ensures the normal operation of the ballast.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224502368U_ABST
    Figure CN224502368U_ABST
Patent Text Reader

Abstract

The utility model discloses a ballast binding post relates to ballast binding post structure technical field, and it aims at solving the problem of the ballast binding post of existing ballast when wiring, the clamping effect of wire is not good, and wire appears to fall off and separates easily, thereby influences the use of ballast, and its technical scheme main points include ballast outer protective housing, one end of two opposite outer walls of ballast outer protective housing all is provided with the fin of heat dissipation, and the front end and rear end of ballast outer protective housing all are provided with the terminal box, the inside of terminal box one end is provided with the wire inlet hole, the inside of terminal box upper end is provided with the thread groove, the periphery of thread groove inner wall all is provided with the connecting thread, the lower extreme of thread groove is provided with the installation groove, the lower extreme of installation groove is provided with the contact contact seat, the inside installation of installation groove has the binding post, the upper end of binding post is provided with the terminal, and the upper of terminal box is provided with fastening device.
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Description

Technical Field

[0001] This utility model relates to the technical field of ballast terminal structure, and in particular to a ballast terminal. Background Technology

[0002] Ballast terminals are the metal contacts or sockets on a ballast used to connect the power cord and the fluorescent tube. A ballast is an electrical component used to limit current, protect the fluorescent tube, and start the lamp; it plays a crucial role in a lighting system. Ballasts typically have multiple terminals for connecting different wires, ensuring stable and safe light emission.

[0003] A search revealed that patent announcement number CN203301833U discloses a ballast belonging to the field of electrical component technology. It solves the problems of inconvenient assembly and high operating noise in existing ballasts. This ballast includes a coil, terminals, and a base. The terminals are fixed to a base plate, and a support block is fixed to the base. A front baffle and a rear baffle are fixed to opposite sides of the coil. The bottom of each of the front and rear baffles protrudes from the coil and forms a clamping opening on the support block. A pressure block presses the coil tightly, and both sides of this pressure block are engaged with the base plate. A noise-reducing structure is provided between the support block and the base to reduce noise. This ballast has the advantages of convenient assembly and low operating noise.

[0004] However, existing ballast terminals do not hold the wires well during wiring, which can easily cause the wires to come loose and separate, thus affecting the use of the ballast. Therefore, there is an urgent need in the market for a new type of ballast terminal to solve these problems. Utility Model Content

[0005] The purpose of this utility model is to provide a ballast terminal block to solve the problem mentioned in the background art that the existing ballast terminal blocks do not have a good clamping effect on the wires when wiring, which easily causes the wires to fall off and separate, thus affecting the use of the ballast.

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

[0007] A ballast terminal block includes a ballast outer protective shell, a fixing plate at the lower end of the outer protective shell, heat dissipation fins at one end of each of the two opposite outer walls of the outer protective shell, junction boxes at both the front and rear ends of the outer protective shell, an inlet hole at one end of each junction box, a threaded groove at the upper end of the junction box, connecting threads around the inner wall of the threaded groove, a mounting groove at the lower end of the threaded groove, a contact seat at the lower end of the mounting groove, a terminal block installed inside the mounting groove, a terminal base at the upper end of the terminal block, and a fastening device above the junction box, the fastening device including a rotating knob and a threaded rod, the threaded rod being located at the lower end of the rotating knob.

[0008] Preferably, the fixing plate has four mounting limiting holes at both ends, and the four mounting limiting holes are symmetrical about the vertical center line of the fixing plate.

[0009] Preferably, a plurality of heat dissipation fins are provided, and the plurality of heat dissipation fins are sequentially distributed at one end of the two opposite outer walls of the outer protective shell of the ballast. One end of the heat dissipation fin passes through the outer protective shell of the ballast and extends into the interior of the outer protective shell of the ballast.

[0010] Preferably, there are two junction boxes, and the two junction boxes are symmetrical about the vertical center line of the ballast outer protective shell.

[0011] Preferably, the lower end of the terminal block is provided with a contact end, which is located inside the contact base.

[0012] Preferably, the terminal block and the terminal post are an integral structure, and the terminal post has a wiring hole inside, which is correspondingly provided with the inlet hole.

[0013] Preferably, the rotating knob and the threaded rod are an integral structure, the outer wall of the threaded rod is provided with mounting threads around its perimeter, the threaded rod is located inside the threaded groove, the mounting threads are provided in correspondence with the connecting threads, the lower end of the threaded rod is provided with a limiting slot hole, and the terminal block is located inside the limiting slot hole.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] (1) When wiring, the connecting wire is passed through the inlet hole and then through the wiring hole. Then, the threaded rod is moved downward by rotating the knob. At this time, the terminal block is located inside the limiting slot of the threaded rod. Continue to rotate so that the lower end of the threaded rod squeezes the connecting wire. This can more effectively improve the wiring effect of the connecting wire and avoid the connecting wire from falling off and separating, which would affect the use of the ballast.

[0016] (2) By installing the terminal block into the inside of the mounting groove, the lower end of the terminal block is installed into the inside of the contact seat. At this time, the wire inlet hole and the wiring hole set on the terminal block are on the same horizontal plane, so that the connecting wire can be installed conveniently. Attached Figure Description

[0017] Figure 1 This is a perspective view of the entire utility model;

[0018] Figure 2 This is a partial sectional view of the junction box of this utility model;

[0019] Figure 3 For the present utility model Figure 1 A magnified view of a portion of area A;

[0020] Figure 4 For the present utility model Figure 2 A magnified view of a portion of area B.

[0021] In the diagram: 1. Ballast outer protective shell; 2. Fixing plate; 201. Mounting limit hole; 3. Heat dissipation fins; 4. Junction box; 401. Cable inlet; 402. Threaded groove; 403. Connecting thread; 404. Mounting groove; 405. Contact seat; 5. Terminal post; 501. Contact end; 502. Terminal block; 503. Wiring hole; 6. Fastening device; 7. Rotating knob; 8. Threaded rod; 801. Mounting thread; 802. Limiting groove hole. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Please see Figures 1-4This utility model provides an embodiment of a ballast terminal block, comprising a ballast outer protective shell 1, a fixing plate 2 at the lower end of the ballast outer protective shell 1, four mounting limiting holes 201 at both ends of the fixing plate 2, the four mounting limiting holes 201 being symmetrical about the vertical center line of the fixing plate 2, heat dissipation fins 3 at one end of each of the two opposite outer walls of the ballast outer protective shell 1, and junction boxes 4 at both the front and rear ends of the ballast outer protective shell 1, with a wire inlet hole 401 at one end of the junction box 4, a threaded groove 402 at the upper end of the junction box 4, connecting threads 403 around the inner wall of the threaded groove 402, and an installation groove 404 at the lower end of the threaded groove 402. The lower end of the mounting slot 404 is provided with a contact seat 405, and the inside of the mounting slot 404 is provided with a terminal post 5. The upper end of the terminal post 5 is provided with a terminal block 502. The top of the junction box 4 is provided with a fastening device 6, which includes a rotating knob 7 and a threaded rod 8. The lower end of the rotating knob 7 is provided with a threaded rod 8. The ballast can be protected by the outer protective shell 1, the ballast can be easily installed by the fixing plate 2, and the wiring can be easily connected by the junction box 4, so that the ballast can be used conveniently. It should be noted that, in order to save space and highlight the innovative elements of this patent, such as the specific working principle and process of the ballast, and the specific working principle and installation process of the terminal post, it will not be described in detail in this patent.

[0024] See Figure 1 The heat dissipation fins 3 are provided in a number of ways. The heat dissipation fins 3 are distributed sequentially at one end of the two opposite outer walls of the outer protective shell 1 of the ballast. One end of the heat dissipation fins 3 passes through the outer protective shell 1 of the ballast and extends into the interior of the outer protective shell 1 of the ballast. The heat dissipation fins 3 enable the outer protective shell 1 of the ballast to have a better heat dissipation effect and avoid overheating inside the outer protective shell 1 of the ballast, which would affect the service life of the ballast.

[0025] See Figure 2 , Figure 3 and Figure 4 There are two junction boxes 4, which are symmetrical about the vertical center line of the outer protective shell 1 of the ballast. The lower end of the terminal 5 is provided with a contact end 501, which is located inside the contact base 405. The terminal base 502 and the terminal 5 are integrated. The terminal 5 is provided with a wiring hole 503 inside, which is corresponding to the inlet hole 401. The junction box 4 allows for convenient wiring. The contact end 501 is located inside the contact base 405, which allows the terminal 5 to be used for wiring. The wiring hole 503 allows the connecting wire to enter from the inlet hole 401 and then into the wiring hole 503.

[0026] See Figures 1-4The rotating knob 7 and the threaded rod 8 are an integral structure. The outer wall of the threaded rod 8 is provided with mounting threads 801. The threaded rod 8 is located inside the threaded groove 402. The mounting threads 801 are correspondingly provided with the connecting threads 403. The lower end of the threaded rod 8 is provided with a limiting slot 802. The terminal block 502 is located inside the limiting slot 802. The threaded rod 8 can be rotated by rotating the knob 7, so that the lower end of the threaded rod 8 squeezes the connecting wire entering the terminal block 503, which can improve the fastening effect.

[0027] Working principle: In use, the terminal 5 is installed into the mounting groove 404, and the lower end of the terminal 5 is installed into the contact seat 405. At this time, the inlet hole 401 and the wiring hole 503 of the terminal 5 are on the same horizontal plane. When wiring, the connecting wire is passed through the inlet hole 401 and then through the wiring hole 503. Then, by rotating the knob 7, the threaded rod 8 is moved downward. At this time, the terminal seat 502 of the terminal 5 is located inside the limiting groove 802 of the threaded rod 8. Continue to rotate, and the lower end of the threaded rod 8 squeezes the connecting wire. This can more effectively improve the wiring effect of the connecting wire and prevent the connecting wire from easily falling off and separating, thus affecting the use of the ballast.

[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A ballast terminal block, comprising a ballast outer protective shell (1), characterized in that: The lower end of the ballast outer protective shell (1) is provided with a fixing plate (2). Heat dissipation fins (3) are provided at one end of each of the two opposite outer walls of the ballast outer protective shell (1). Junction boxes (4) are provided at both the front and rear ends of the ballast outer protective shell (1). An inlet hole (401) is provided inside one end of the junction box (4). A threaded groove (402) is provided inside the upper end of the junction box (4). Connecting threads (403) are provided around the inner wall of the threaded groove (402). The lower end of the threaded groove (402) is provided with a mounting groove (404), the lower end of the mounting groove (404) is provided with a contact seat (405), the inside of the mounting groove (404) is provided with a terminal block (5), the upper end of the terminal block (5) is provided with a terminal block (502), and the top of the junction box (4) is provided with a fastening device (6). The fastening device (6) includes a rotating knob (7) and a threaded rod (8). The lower end of the rotating knob (7) is provided with a threaded rod (8).

2. A ballast terminal block according to claim 1, characterized in that: The fixed plate (2) has four mounting limit holes (201) inside both ends. The four mounting limit holes (201) are symmetrical about the vertical center line of the fixed plate (2).

3. A ballast terminal block according to claim 2, characterized in that: The heat dissipation fins (3) are provided in a plurality of manner, and the plurality of heat dissipation fins (3) are distributed sequentially at one end of the two opposite outer walls of the ballast outer protective shell (1). One end of the heat dissipation fins (3) passes through the ballast outer protective shell (1) and extends into the interior of the ballast outer protective shell (1).

4. A ballast terminal block according to claim 3, characterized in that: There are two junction boxes (4), and the two junction boxes (4) are symmetrical about the vertical center line of the outer protective shell (1) of the ballast.

5. A ballast terminal block according to claim 4, characterized in that: The lower end of the terminal block (5) is provided with a contact end (501), which is located inside the contact base (405).

6. A ballast terminal according to claim 5, characterized in that: The terminal block (502) and the terminal post (5) are an integral structure. The terminal post (5) has a wiring hole (503) inside, and the wiring hole (503) is correspondingly provided with the inlet hole (401).

7. A ballast terminal block according to claim 6, characterized in that: The rotating knob (7) and the threaded rod (8) are an integral structure. The outer wall of the threaded rod (8) is provided with mounting threads (801). The threaded rod (8) is located inside the threaded groove (402). The mounting threads (801) are correspondingly provided with the connecting threads (403). The lower end of the threaded rod (8) is provided with a limiting slot (802). The terminal block (502) is located inside the limiting slot (802).