A positioning ball slot type plastic light accessory mounting structure of a round head lithium battery machine top flash light

Abstract

The utility model discloses a positioning ball -clasp -groove type plastic light accessory mounting structure of round head lithium cell machine top flash, relates to flash accessory device technical field, solves the problem of insufficient stability of existing plastic light accessory mounting structure, and poor dismouting convenience. It includes fuselage, round lamp cap, the fuselage built -in transformer circuit board group, control panel circuit group and battery box, and the lamp cap is equipped with main lamp holder, light circuit board group and double fresnel lens, still include the fixing ring of through screw installation in the lamp cap end, and the fixing ring passes through the snap ring and fixes double fresnel lens, and the inboard circumference lateral wall of fixing ring installs a plurality of elastic carding components, and the adapter ring for installing plastic light accessory, and the installation ring of adapter ring is equipped with the clamping groove of adapting with elastic carding components. The structure greatly improves the dismouting convenience and installation stability of plastic light accessory, adapts complex shooting scene, prolongs the life, satisfies the efficient creation demand of photographer.

Description

Technical Field

[0001] This utility model relates to the field of photographic equipment technology, and in particular to a positioning ball-type plastic light accessory mounting structure for a round-headed lithium battery on-camera flash. Background Technology

[0002] In today's pursuit of ultimate image quality, photographers have increasingly stringent requirements for lighting equipment. Traditional studio flashes are powerful, but bulky and inconvenient to carry, greatly limiting the flexibility of shooting scenarios and causing many problems for outdoor shooting or shooting that requires frequent location changes; while common hot shoe flashes have the advantage of portability, their insufficient output power makes it difficult to meet the light intensity and effect requirements of high-end commercial shooting, resulting in poor shooting results in demanding scenarios.

[0003] To address these pain points, the round-head lithium battery-powered on-camera flash was developed. This type of flash uses a high-energy-density lithium battery as its power source, ensuring powerful output close to that of an external flash while significantly reducing overall size and weight, achieving a perfect balance between high performance and portability. Furthermore, through optimized internal structure and the use of lightweight materials, it achieves a lightweight and compact design, allowing for easy mounting on the camera's hot shoe without adding excessive burden. Combined with built-in intelligent dimming technology, a TTL metering system, and wireless flash triggering, it can adapt to various complex shooting scenarios, significantly improving shooting efficiency and image quality.

[0004] In the prior art, Chinese utility model patent CN212181223U discloses a round-head on-camera flash. This patent includes a body and a circular flash head. The body houses a transformer circuit board assembly, a control board circuit assembly, and a battery box. The flash head contains a main lamp holder, a flash head circuit board assembly, an LED aluminum substrate, and a heat sink. It uses an LED-assisted continuous-on flash for fill light and focus assistance. A lithium battery supports 500 full-power flashes. The round head design also produces softer, more even light, making it particularly suitable for children's photography. While this patent optimizes the flash's main structure, battery life, and light effects, it does not specifically design the mounting structure for the light-shaping accessory.

[0005] Light shaping accessories, as core tools for shaping light and shadow, are an indispensable part of high-end photography. By changing the direction, range, and intensity of light propagation, they can achieve various light and shadow effects such as soft light, focused light, and beamed light, directly determining the sense of layering, texture, and artistic expression of the image. They are key accessories for photographers to achieve their creative shooting needs.

[0006] However, the existing publicly disclosed patents regarding a round-headed on-camera flash still employ traditional snap-on, magnetic, threaded, adhesive, or simple slot-type structures for installing light-shaping accessories, which have significant drawbacks: traditional snap-on types require precise alignment to lock, and replacement is time-consuming and frequent operation can easily lead to snap-on fatigue and breakage; while magnetic types are quick to install and remove, they are affected by magnetic field attenuation and metal dust interference, resulting in a high detachment rate in outdoor windy or mobile shooting scenarios, and may also interfere with camera sensor signals; although threaded connections offer strong stability, installation and removal require multiple rotations, and thread wear reduces positioning accuracy, leading to increased light leakage; adhesive types are greatly affected by temperature and humidity and are prone to adhesive residue; simple slot-type types have poor matching, and the light-shaping accessories are prone to shaking, affecting the accuracy of light control.

[0007] In summary, the light-shaping accessory mounting structure of the aforementioned patented round-head on-camera flash has problems such as insufficient stability and poor ease of assembly and disassembly, making it difficult to meet the needs of photographers for efficient creation and shooting in complex scenes. There is an urgent need for an innovative mounting structure to solve the above pain points. Utility Model Content

[0008] To solve the above-mentioned technical problems, this utility model provides a positioning ball-grooved slot type mounting structure for a round-head lithium battery on-camera flash that can improve the ease of installation and stability of the plastic light attachment.

[0009] This utility model discloses a positioning ball-type slot-type plastic light accessory mounting structure for a round-head lithium battery on-camera flash, including a body and a round lamp head mounted at one end of the body. The body housing includes a front housing and a rear housing, and the lamp head housing includes an upper lamp head housing and a lower lamp head housing. The body houses a transformer circuit board assembly, a control board circuit assembly, and a battery box. The battery box includes a battery box holder and a lithium battery pack embedded therein. The lamp head houses a main lamp holder, a light circuit board assembly, an outer Fresnel lens, and an inner Fresnel lens. A hot shoe interface assembly is located at the end of the body away from the lamp head. A head cover retainer is located at the lamp head. A photosensitive circuit assembly is located on the front housing of the body. The device also includes:

[0010] The retaining ring is installed on the end of the lamp housing of the lamp head by screws. A retaining ring is provided on the inner side wall of the retaining ring near the lamp head. The retaining ring uses the retaining ring to hold the outer Fresnel lens and the inner Fresnel lens on the lamp head. The outer Fresnel lens is located outside the inner Fresnel lens.

[0011] The elastic snap-fit ​​assembly is configured as multiple elastic snap-fit ​​assemblies, which are evenly distributed and installed on the inner circumferential side wall of the fixing ring.

[0012] A light-adhesive accessory connector is used to install light-adhesive accessories. The connector includes an adapter ring, on which a mounting ring is coaxially arranged on the side wall facing the lamp head. The mounting ring has a slot that matches the elastic snap-fit ​​component. The mounting ring of the adapter ring can be detachably snapped into the fixing ring through the slot and the elastic snap-fit ​​component. The head cover retaining ring is sleeved on the mounting ring and locked onto the adapter ring by screws. The head cover retaining ring is squeezed between the fixing ring and the adapter ring.

[0013] Furthermore, the elastic locking assembly is configured as a press-fit ball plunger, and the inner circumferential sidewall of the fixing ring is evenly provided with multiple positioning grooves. The multiple press-fit ball plungers are respectively fixedly installed in the multiple positioning grooves, and the ball of the press-fit ball plunger extends into the fixing ring.

[0014] Furthermore, the groove on the mounting ring includes a sliding groove extending from the fixed ring to the adapter ring. The sliding groove has a sliding entrance facing the fixed ring. The side of the sliding groove facing the adapter ring is connected to an arc-shaped groove. The arc-shaped groove is arranged along the circumference of the adapter ring. The inner end of the arc-shaped groove is connected to an arc-shaped limiting groove. The size and number of the sliding groove, the arc-shaped groove, and the arc-shaped limiting groove are all adapted to the ball-locking mechanism of the press-fit ball plunger.

[0015] Furthermore, the inner end of the arc-shaped groove, which is in close contact with the arc-shaped limiting groove, is provided with anti-retraction protrusions.

[0016] Furthermore, the inner end of the sliding groove is set as a slope from the sliding entrance to the middle of the sliding groove, and the slope extends from the inside to the outside from the sliding entrance.

[0017] Furthermore, the flexible card-mounting components are configured as four.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] 1. Significantly improves the ease of assembly and disassembly of light-shaping accessories: The flexible snap-fit ​​components and slots replace traditional buckles, threads, and other connection methods, eliminating the need for precise alignment or multiple rotations, enabling quick assembly and disassembly, greatly reducing the time photographers spend changing accessories and improving shooting efficiency.

[0020] 2. Enhanced installation stability and reliability: The combination design of press-fit ball plunger, arc-shaped limiting groove, and anti-retraction protrusion effectively avoids the problems of easy detachment of traditional magnetic type, easy breakage of snap type, and easy shaking of slot type. It can be stably fixed even in outdoor windy or mobile shooting scenarios, reducing light leakage.

[0021] 3. Optimized structural adaptability and compatibility: The fixing ring precisely secures the double Fresnel lens through the retaining ring, and the adapter ring can be adapted to various light-shaping accessories. The evenly distributed design of the elastic clamping components ensures balanced force distribution, taking into account both the stability of the main flash structure and the versatility of light-shaping accessories.

[0022] 4. Improved operational smoothness and structural durability: The sloping design of the sliding groove reduces the resistance to ball insertion, the arc groove is adapted to the circumferential sliding of the ball, and the anti-reverse protrusions prevent accidental drop, while reducing component wear and extending the service life of the overall structure.

[0023] 5. Balancing lightweight design and structural strength: The modular design ensures installation stability without adding excessive weight, meeting the core portability requirements of round-head lithium battery on-camera flashes. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of this utility model;

[0025] Figure 2 This is the utility model Figure 1 A magnified schematic diagram of the structure of part A in the diagram;

[0026] Figure 3 This is a schematic diagram of the connection structure of the press-fit ball plunger and the retaining ring of this utility model;

[0027] Figure 4 This is the utility model Figure 3 A magnified schematic diagram of the partial structure of B in the diagram;

[0028] Figure 5 This is a diagram of the internal structure of this utility model;

[0029] The attached diagram is labeled as follows: 1. Lamp head; 27. Front housing of the main unit; 70. Rear housing of the main unit; 89. Upper housing of the lamp head; 12. Lower housing of the lamp head; 29. ​​Transformer circuit board assembly; 58. Control board circuit assembly; 92. Main lamp holder; 85. Lighting circuit board assembly; 3. Outer Fresnel lens; 4. Inner Fresnel lens; 41. Hot shoe interface assembly; 2. Head cover retaining ring; 98. Fixing ring; 15. Snap ring; 95. Adapter ring; 17. Mounting ring; 96. Press-fit ball plunger; 19. Sliding groove; 20. Arc groove; 21. Arc limiting groove; 22. Anti-reverse protrusion; 72. Lithium battery pack; 25. Photosensitive circuit assembly. Detailed Implementation

[0030] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0031] like Figures 1 to 5As shown, this utility model discloses a positioning ball-type plastic light accessory mounting structure for a round-head lithium battery on-camera flash, including a body and a round lamp head 1 mounted at one end of the body. The body housing includes a front housing 27 and a rear housing 70. The lamp head 1 housing includes an upper lamp head housing 89 and a lower lamp head housing 12. The body houses a transformer circuit board assembly 29, a control board circuit assembly 58, and a battery box. The battery box includes a battery box holder and a lithium battery pack 72 embedded therein. The lamp head 1 contains a main lamp holder 92, a light circuit board assembly 85, an outer Fresnel lens 3, and an inner Fresnel lens 4. A hot shoe interface assembly 41 is provided at the end of the body away from the lamp head 1. A head cover retainer 2 is provided at the lamp head 1. A photosensitive circuit assembly 25 is located on the front housing 27 of the body. The device also includes:

[0032] The fixing ring 98 is installed on the end of the lamp housing of the lamp head 1 by screws. The inner side wall of the fixing ring 98 is provided with a retaining ring 15 near the lamp head 1. The fixing ring 98 uses the retaining ring 15 to hold the outer Fresnel lens 3 and the inner Fresnel lens 4 on the lamp head 1. The outer Fresnel lens 3 is located outside the inner Fresnel lens 4.

[0033] The elastic snap-fit ​​assembly is configured as multiple elastic snap-fit ​​assemblies, which are evenly distributed and installed on the inner circumferential side wall of the fixing ring 98.

[0034] A light-emitting accessory connector is used to install light-emitting accessories. The light-emitting accessory connector includes an adapter ring 95. The adapter ring 95 has a mounting ring 17 coaxially arranged on the side wall facing the lamp head 1. The mounting ring 17 has a slot adapted to the elastic snap-fit ​​component. The mounting ring 17 of the adapter ring 95 can be detachably snapped into the fixing ring 98 through the slot and the elastic snap-fit ​​component. The head cover snap ring 2 is sleeved on the mounting ring 17 and is locked onto the adapter ring 95 by screws. The head cover snap ring 2 is squeezed between the fixing ring 98 and the adapter ring 95.

[0035] In this embodiment,

[0036] Fixing ring 98: Installed to the end of the lamp housing 1 by screws. Its core function is to precisely fix the outer Fresnel lens 3 and the inner Fresnel lens 4 by the inner side wall retaining ring 15, while providing an installation base for the flexible clamping assembly, realizing the integration of lens fixing and accessory installation structure;

[0037] Flexible snap-fit ​​component: As a core connecting component, it enables flexible engagement with the plastic and photosensitive accessory connector, providing elastic locking force for quick assembly and disassembly and stable fixation of the plastic and photosensitive accessory, replacing the traditional connection structure;

[0038] Plastic light accessory connector: The adapter ring 95 is used to install plastic light accessories. The mounting ring 17 is adapted to the elastic snap-fit ​​component through the set slot, so as to realize the detachable snap-fit ​​of the entire connector and the fixing ring 98. It is the bridge connecting the plastic light accessory and the flash unit body.

[0039] Headgear retaining ring 2: Sleeves onto mounting ring 17, and is locked to adapter ring 95 by screws, pressing and fixing it between fixing ring 98 and adapter ring 95, further enhancing the stability of adapter ring 95 installation and preventing axial loosening.

[0040] Furthermore, the elastic locking assembly is configured as a press-fit ball plunger 96, and the inner circumferential sidewall of the fixing ring 98 is provided with a plurality of positioning grooves, and the plurality of press-fit ball plungers 96 are respectively fixedly installed in the plurality of positioning grooves, and the ball of the press-fit ball plunger 96 extends into the fixing ring 98.

[0041] In this embodiment,

[0042] Press-fit ball plunger 96: It is fixedly installed in the positioning groove of the fixed ring 98. Its ball extends into the inside of the fixed ring 98. Through the elastic extension and retraction characteristics of the ball head, it achieves precise engagement and disengagement with the groove, taking into account both ease of disassembly and assembly and fixed stability.

[0043] Positioning groove: Used to accurately fix the press-fit ball head plunger 96, ensuring that multiple plungers are evenly distributed and installed, ensuring balanced force, and avoiding misalignment during engagement.

[0044] Furthermore, the groove on the mounting ring 17 includes a sliding groove 19 extending from the fixed ring 98 to the adapter ring 95. The sliding groove 19 has a sliding entrance facing the fixed ring 98. An arc groove 20 is connected to the side of the sliding groove 19 facing the adapter ring 95. The arc groove 20 is arranged along the circumference of the adapter ring 95. An arc limiting groove 21 is connected to the inner end of the arc groove 20. The size and number of the sliding groove 19, the arc groove 20, and the arc limiting groove 21 are all adapted to the ball-holding mechanism of the press-fit ball plunger 96.

[0045] In this embodiment,

[0046] Slide groove 19: Provides an inlet channel for the ball to be inserted into the ball of the press-fit ball head plunger 96. Its sliding inlet facing the fixed ring 98 facilitates the ball to quickly enter the groove and achieve initial positioning.

[0047] Arc groove 20: It is set along the circumference of the adapter ring 95, connecting the sliding groove 19 and the arc limiting groove 21, providing circumferential sliding space for the ball to be stuck, and facilitating the rotation adjustment and positioning of the adapter ring 95.

[0048] Arc-shaped limiting groove 21: Adapted to the size of the ball clamp, it is used for the final limiting and fixing of the ball clamp. The arc-shaped design fits the surface of the ball clamp, enhancing the fixing stability and preventing the adapter ring 95 from loosening in the axial and circumferential directions.

[0049] Furthermore, the inner end of the arc groove 20, which is in close contact with the arc limiting groove 21, is provided with anti-retraction protrusions 22;

[0050] In this embodiment,

[0051] Anti-retraction protrusion 22: Set at the junction of the inner end of the arc groove 20 and the arc limiting groove 21, the core function is to use the protrusion to prevent the ball from accidentally retracting back into the arc groove 20, further improving the anti-drop performance after installation and avoiding loosening of the engagement due to vibration during moving and shooting.

[0052] Furthermore, the inner end of the sliding groove 19 is provided as a slope from the sliding entrance to the middle of the sliding groove 19, and the slope extends from the inside to the outside from the sliding entrance;

[0053] In this embodiment,

[0054] Slope of the slide groove 19: The slope design extending from the inside to the outside of the slide inlet reduces the resistance of the press-fit ball plunger 96 to the ball entering the slide groove 19, making the engagement process smoother and reducing hard friction between components.

[0055] Furthermore, the flexible card-mounting components are configured to be four;

[0056] In this embodiment,

[0057] Four flexible snap-fit ​​components: The evenly distributed arrangement ensures balanced force when the adapter ring 95 and the fixing ring 98 are connected. Compared with fewer components, this further improves installation stability and avoids shaking or wear caused by single-point force.

[0058] The working principle of this utility model is as follows:

[0059] The core working principle of this utility model is to achieve rapid disassembly and stable fixation of plastic light accessories through a modular design of "elastic engagement + precise positioning".

[0060] Specific procedures:

[0061] 1. Assembly base: The fixing ring 98 is installed on the end of the lamp holder 1 by screws, and the double Fresnel lens is fixed by the retaining ring 15. At the same time, the press-fit ball plunger 96 (elastic clamping assembly) is evenly installed in the positioning groove.

[0062] 2. Attachment installation: Install the plastic-coated attachment onto the adapter ring 95, aligning the sliding inlet of the mounting ring 17 of the adapter ring 95 with the ball-holding mechanism of the press-fit ball plunger 96. Guide the ball-holding mechanism into the sliding groove 19 through the slope of the sliding groove 19. Rotate the adapter ring 95 to make the ball-holding mechanism slide along the arc groove 20 to the arc limiting groove 21. The anti-retraction protrusion 22 prevents the ball-holding mechanism from retracting, achieving elastic locking.

[0063] 3. Auxiliary fixation: The head cover retaining ring 2 is locked to the adapter ring 95 by screws, and is pressed and fixed between the fixing ring 98 and the adapter ring 95 to enhance axial stability;

[0064] 4. Accessory disassembly: Rotate the adapter ring 95 in the opposite direction to make the ball overcome the resistance of the anti-reverse protrusion 22 and slide out along the arc groove 20 and into the groove 19, completing the quick disassembly.

[0065] The entire process requires no complicated operations, balancing convenience and stability, and solving the core pain points of traditional installation structures.

[0066] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A positioning ball-type plastic light accessory mounting structure for a round-head lithium battery on-camera flash, comprising a body and a round lamp head (1) mounted at one end of the body, wherein the body housing includes a front housing (27) and a rear housing (70), the lamp head (1) housing includes an upper lamp head housing (89) and a lower lamp head housing (12), the body housing contains a transformer circuit board assembly (29), a control board circuit assembly (58) and a battery box, the battery box includes a battery box holder and a lithium battery pack (72) embedded therein, the lamp head (1) contains a main lamp holder (92), a light circuit board assembly (85) and an outer Fresnel lens (3) and an inner Fresnel lens (4), the end of the body away from the lamp head (1) is provided with a hot shoe interface assembly (41), the lamp head (1) is provided with a head cover retainer (2), and the front housing (27) of the body has a photosensitive circuit assembly (25), characterized in that, Also includes: A retaining ring (98) is installed on the end of the lamp housing of the lamp head (1) by screws. A retaining ring (15) is provided on the inner side wall of the retaining ring (98) near the lamp head (1). The retaining ring (98) uses the retaining ring (15) to hold the outer Fresnel lens (3) and the inner Fresnel lens (4) on the lamp head (1). The outer Fresnel lens (3) is located outside the inner Fresnel lens (4). The elastic snap-fit ​​assembly is configured as multiple elastic snap-fit ​​assemblies, which are evenly distributed and installed on the inner circumferential sidewall of the fixing ring (98). A light-adhesive accessory connector is used to install light-adhesive accessories. The light-adhesive accessory connector includes an adapter ring (95). The adapter ring (95) has a mounting ring (17) coaxially arranged on the side wall facing the lamp head (1). The mounting ring (17) is provided with a slot that is adapted to the elastic snap-fit ​​component. The mounting ring (17) of the adapter ring (95) can be detachably snapped into the fixing ring (98) through the slot and the elastic snap-fit ​​component. The head cover snap ring (2) is sleeved on the mounting ring (17) and the head cover snap ring (2) is locked on the adapter ring (95) by screws. The head cover snap ring (2) is squeezed between the fixing ring (98) and the adapter ring (95).

2. The positioning ball-type plastic light accessory mounting structure for a round-head lithium battery on-camera flash as described in claim 1, characterized in that, The elastic clamping assembly is configured as a press-fit ball plunger (96). The inner circumferential sidewall of the fixing ring (98) is provided with multiple positioning grooves. Multiple press-fit ball plungers (96) are fixedly installed in multiple positioning grooves respectively. The ball of the press-fit ball plunger (96) extends into the fixing ring (98).

3. The positioning ball-type plastic light accessory mounting structure for a round-head lithium battery on-camera flash as described in claim 1, characterized in that, The mounting ring (17) has a slot including a sliding groove (19) from the fixed ring (98) to the adapter ring (95). The sliding groove (19) has a sliding entrance facing the fixed ring (98). The side of the sliding groove (19) facing the adapter ring (95) is connected to an arc groove (20). The arc groove (20) is arranged along the circumference of the adapter ring (95). The inner end of the arc groove (20) is connected to an arc limiting groove (21). The size and number of the sliding groove (19), the arc groove (20) and the arc limiting groove (21) are all adapted to the ball-locking mechanism of the press-fit ball head plunger (96).

4. The positioning ball-type plastic light accessory mounting structure for a round-head lithium battery on-camera flash as described in claim 3, characterized in that, The inner end of the arc groove (20) is provided with anti-retraction protrusions (22) at the part that is in close contact with the arc limiting groove (21).

5. The positioning ball-type plastic light accessory mounting structure for a round-head lithium battery on-camera flash as described in claim 3, characterized in that, The inner end of the sliding groove (19) is set as a slope from the sliding entrance to the middle of the sliding groove (19), and the slope extends from the inside to the outside from the sliding entrance.

6. The positioning ball-type plastic light accessory mounting structure for a round-head lithium battery on-camera flash as described in claim 1, characterized in that, The flexible card mounting components are configured in four parts.

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