Hot shoe plug and flash lamp

Abstract

The utility model discloses a hot shoe plug and a flash lamp, the hot shoe plug comprises a housing, a support frame, a probe assembly and a circuit board, and the housing is provided with a first installation cavity and a plurality of first through holes communicated with the first installation cavity; the supporting frame is at least partially contained in the first mounting cavity, the supporting frame is provided with a plurality of second through holes extending in the first direction, and each second through hole is correspondingly communicated with one first through hole; the contact part of each probe assembly correspondingly penetrates through one first through hole, the contact part can partially extend out of the shell, the mounting part of each probe assembly correspondingly penetrates through one second through hole, and one end, far away from the contact part, of the mounting part protrudes relative to the support frame; the circuit board is electrically connected with the protruding part of the installation part. The support frame can limit the plurality of probe assemblies, and ensures that the relative positions of the plurality of probe assemblies are not changed in the installation process of the circuit board, thereby avoiding the contact short circuit between the adjacent probe assemblies, and facilitating the improvement of the yield of the hot shoe plug.

Description

Technical Field

[0001] The utility model relates to the technical field of photographic equipment accessories, in particular to a hot shoe plug and a flashlight. Background Art

[0002] Flashlights emit strong light in a very short time. They are one of the commonly used lamps in photography and videography. They can be used for instant lighting in dimly lit places, and can also be used to provide partial fill light for the subject in brightly lit places. Flashlights are divided into built-in flashlights and external flashlights. Among them, external flashlights are usually connected to the hot shoe socket of the photographic equipment through a hot shoe plug, so that the external flashlight can work according to the signal of the photographic equipment. The hot shoe plug has a probe that can cooperate with the hot shoe socket. Inside the hot shoe plug, the probe is electrically connected to the circuit board.

[0003] In order to ensure the reliability of the electrical connection between the end of the probe of the hot shoe plug and the contact of the hot shoe socket, in the related art, the probe and the circuit board are connected by a metal spring. When the hot shoe plug and the hot shoe socket are matched, the spring is compressed, so that the probe and the contact of the hot shoe socket are reliably abutted. During installation, the combination of the probe and the spring is first installed on the shell of the hot shoe plug so that the probe is exposed outside the shell, and then the circuit board is installed from the inner side of the shell so that the corresponding position of the circuit board abuts against the end of the spring away from the probe to achieve electrical connection between the circuit board and the spring. However, in actual installation, due to possible errors in the installation action, the spring may undergo unexpected deformation during the installation process, such as tilting, lateral bending, etc., which may even cause adjacent springs to short-circuit in contact in severe cases, resulting in a low yield rate. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a hot shoe plug, wherein the mounting parts of a plurality of probe assemblies are correspondingly arranged in a one-to-one manner through the second through hole on the support frame, and the support frame can limit the plurality of probe assemblies to ensure that the relative positions of the plurality of probe assemblies remain unchanged during the installation of the circuit board, thereby avoiding contact short circuits between adjacent probe assemblies, which is conducive to improving the yield rate of the hot shoe plug.

[0005] The utility model also provides a flashlight comprising the hot shoe plug.

[0006] A hot shoe plug provided by an embodiment of the first aspect of the utility model comprises: a shell having a first mounting cavity and a plurality of first through holes connected to the first mounting cavity, the first through holes extending along a first direction; a support frame at least partially accommodated in the first mounting cavity, the support frame having a plurality of second through holes extending along the first direction, each of the second through holes correspondingly connected to a first through hole; a probe assembly comprising a mounting portion, an elastic portion and a contact portion, the contact portion extending along the first direction, the contact portion being slidably connected to the mounting portion along the first direction, the elastic portion extending along the first direction and having two ends respectively connected to the mounting portion and the contact portion, the probe assembly being provided with a plurality of contacts, each of which is correspondingly penetrated through a first through hole, the contact portion being able to partially extend to the outside of the shell, the mounting portion of each of which is correspondingly penetrated through a second through hole, and an end of the mounting portion away from the contact portion protrudes relative to the support frame; a circuit board located on a side of the support frame away from the contact portion, the circuit board being electrically connected to the protruding portion of the mounting portion.

[0007] A hot shoe plug provided by the first embodiment of the utility model has at least the following beneficial effects:

[0008] The mounting parts of the multiple probe assemblies are respectively passed through the second through holes on the support frame, and the support frame can limit the multiple probe assemblies to ensure that the relative positions of the multiple probe assemblies remain unchanged during the installation of the circuit board, thereby avoiding contact short circuits between adjacent probe assemblies, which is beneficial to improving the yield rate of the hot shoe plug.

[0009] In some embodiments of the utility model, the mounting portion has a sliding cavity extending along the first direction, the end of the mounting portion away from the circuit board has an opening connected to the sliding cavity, the elastic portion is accommodated in the sliding cavity, the contact portion is at least partially accommodated in the sliding cavity, the contact portion contacts the inner side wall of the sliding cavity in the circumferential direction, and at least part of the contact portion can extend from the opening.

[0010] In some embodiments of the utility model, the contact portion includes a mating segment and a contact segment connected in sequence along the first direction. In the radial direction of the contact portion, the mating segment protrudes relative to the contact segment. The mating segment contacts the inner wall of the sliding cavity in the circumferential direction. The open end of the sliding cavity has a first limiting wall, and the first limiting wall can abut against the mating segment.

[0011] In some embodiments of the present invention, the contact portion further includes a positioning segment, which is connected to a side of the mating segment away from the contact segment. In the radial direction of the contact portion, the mating segment protrudes relative to the positioning segment, and one end of the elastic portion is sleeved on the positioning segment.

[0012] In some embodiments of the utility model, the first through hole includes a limiting section and an extending section connected in sequence along a first direction, the cross-sectional area of ​​the limiting section is larger than the cross-sectional area of ​​the extending section, a second limiting wall is provided between the limiting section and the extending section, one end of the mounting portion away from the circuit board abuts against the second limiting wall, and the contact section can pass through the extending section.

[0013] In some embodiments of the present utility model, the shell includes a first mounting member and a second mounting member connected to each other, the first mounting member has the first mounting cavity and the first through hole, the second mounting member has the second mounting cavity and the mounting hole, the first through hole, the first mounting cavity, the mounting hole, and the second mounting cavity are connected in sequence along the first direction, part of the support frame is accommodated in the mounting hole, a side surface of the support frame away from the contact portion is flush with the bottom wall of the second mounting cavity, and the circuit board contacts the bottom wall of the second mounting cavity and the side of the support frame away from the contact portion.

[0014] In some embodiments of the present invention, the hot shoe plug further includes a fixing bolt, the support frame further includes a fixing hole extending along the first direction, the fixing bolt passes through the circuit board and the fixing hole and is threadedly connected to the first mounting member.

[0015] In some embodiments of the present invention, the hot shoe plug also includes a positioning rod, the extension direction of which is parallel to the first direction, the positioning rod is connected to one of the first mounting member and the second mounting member, and is passed through the other of the first mounting member and the second mounting member.

[0016] In some embodiments of the present invention, the circuit board includes a board body and a cable connecting portion, wherein the cable connecting portion is connected to a side of the board body away from the supporting frame and protrudes relative to the board body.

[0017] A flashlight provided in an embodiment of the second aspect of the utility model comprises a hot shoe plug provided in any embodiment of the first aspect of the utility model.

[0018] A flashlight provided by the second embodiment of the utility model has at least the following beneficial effects:

[0019] The flash provided in the second aspect of the utility model includes the hot shoe plug provided in the first aspect of the utility model. In the hot shoe plug, the mounting parts of multiple probe assemblies are respectively arranged in the second through holes on the support frame, and the support frame can limit the multiple probe assemblies to ensure that the relative positions of the multiple probe assemblies remain unchanged during the installation of the circuit board, thereby avoiding contact short circuits between adjacent probe assemblies, which is beneficial to improving the yield rate of the hot shoe plug, and then beneficial to improving the yield rate of the flash.

[0020] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention is further described below with reference to the accompanying drawings and embodiments, wherein:

[0022] Figure 1 A three-dimensional schematic diagram of a hot shoe plug provided for some embodiments of the first aspect of the utility model;

[0023] Figure 2 for Figure 1 An exploded diagram of the hot shoe plug is shown;

[0024] Figure 3 for Figure 1 A front view of the hot shoe plug is shown;

[0025] Figure 4 for Figure 3 Sectional view of section AA;

[0026] Figure 5 for Figure 4 Enlarged view of point B in the middle.

[0027] Reference numerals:

[0028] Shell 100, first mounting member 110, first mounting cavity 111, first through hole 112, limiting section 1121, extending section 1122, second limiting wall 1123, second mounting member 120, second mounting cavity 121, mounting hole 122, support frame 200, second through hole 210, fixing hole 220, probe assembly 300, mounting portion 310, sliding cavity 311, first limiting wall 312, elastic portion 320, contact portion 330, mating section 331, contact section 332, positioning section 333, circuit board 400, board body 410, cable connection portion 420, fixing bolt 500, positioning rod 600, locking dial 700. DETAILED DESCRIPTION

[0029] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0030] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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 a limitation on the present invention.

[0031] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0032] In the description of the present invention, the reference to the terms "one embodiment", "some embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0033] Flashlights emit strong light in a very short time. They are one of the commonly used lamps in photography and videography. They can be used for instant lighting in dimly lit places, and can also be used to provide partial fill light for the subject in brightly lit places. Flashlights are divided into built-in flashlights and external flashlights. Among them, external flashlights are usually connected to the hot shoe socket of the photographic equipment through a hot shoe plug, so that the external flashlight can work according to the signal of the photographic equipment. The hot shoe plug has a probe that can cooperate with the hot shoe socket. Inside the hot shoe plug, the probe is electrically connected to the circuit board.

[0034] In order to ensure the reliability of the electrical connection between the end of the probe of the hot shoe plug and the contact of the hot shoe socket, in the related art, the probe and the circuit board are connected by a metal spring. When the hot shoe plug and the hot shoe socket are matched, the spring is compressed, so that the probe and the contact of the hot shoe socket are reliably abutted. During installation, the combination of the probe and the spring is first installed on the shell of the hot shoe plug so that the probe is exposed outside the shell, and then the circuit board is installed from the inner side of the shell so that the corresponding position of the circuit board abuts against the end of the spring away from the probe to achieve electrical connection between the circuit board and the spring. However, in actual installation, due to possible errors in the installation action, the spring may undergo unexpected deformation during the installation process, such as tilting, lateral bending, etc., which may even cause adjacent springs to short-circuit in contact in severe cases, resulting in a low yield rate.

[0035] Based on this, refer to Figures 1 to 5 The first embodiment of the utility model provides a hot shoe plug, including a shell 100, a support frame 200, a probe assembly 300 and a circuit board 400, the shell 100 has a first installation cavity 111 and a plurality of first through holes 112 connected to the first installation cavity 111, and the first through holes 112 extend along a first direction; the support frame 200 is at least partially accommodated in the first installation cavity 111, and the support frame 200 has a plurality of second through holes 210 extending along the first direction, and each second through hole 210 is correspondingly connected to a first through hole 112; the probe assembly 300 includes a mounting portion 310, an elastic portion 320 and a contact portion 330, and the contact portion 330 extends along the first direction, and the contact portion 330 extends along the first direction. 30 is connected to the mounting portion 310 by sliding along the first direction, the elastic portion 320 extends along the first direction and the two ends are connected to the mounting portion 310 and the contact portion 330 respectively, the probe assembly 300 is provided with a plurality of probe assemblies, the contact portion 330 of each probe assembly 300 is correspondingly penetrated in a first through hole 112, the contact portion 330 can be partially extended to the outside of the housing 100, the mounting portion 310 of each probe assembly 300 is correspondingly penetrated in a second through hole 210, and one end of the mounting portion 310 away from the contact portion 330 protrudes relative to the support frame 200; the circuit board 400 is located on the side of the support frame 200 away from the contact portion 330, and the circuit board 400 is electrically connected to the protruding portion of the mounting portion 310. The support frame 200 can limit the plurality of probe assemblies 300 to ensure that the relative positions of the plurality of probe assemblies 300 remain unchanged during the installation of the circuit board 400, thereby avoiding contact short circuits between adjacent probe assemblies 300, which is conducive to improving the yield rate of the hot shoe plug.

[0036] Further, refer to Figure 5The mounting portion 310 has a sliding cavity 311 extending along the first direction. The end of the mounting portion 310 away from the circuit board 400 has an opening connected to the sliding cavity 311. The elastic portion 320 is accommodated in the sliding cavity 311. The contact portion 330 is at least partially accommodated in the sliding cavity 311. The contact portion 330 contacts the inner side wall of the sliding cavity 311 in the circumferential direction. At least part of the contact portion 330 can extend from the opening. On the one hand, the sliding cavity 311 of the mounting portion 310 can be used to accommodate the elastic portion 320 to reduce the possibility of bending of the elastic portion 320 during the expansion and contraction process; on the other hand, the contact portion 330 contacts the inner side wall of the sliding cavity 311 in the circumferential direction. The inner side wall of the sliding cavity 311 can guide the movement of the contact portion 330, so that the contact portion 330 can only move along the first direction, thereby improving the stability of the movement.

[0037] Further, refer to Figure 5 The contact portion 330 includes a mating segment 331 and a contact segment 332 which are sequentially connected along a first direction. In the radial direction of the contact portion 330, the mating segment 331 protrudes relative to the contact segment 332. The mating segment 331 contacts the inner wall of the sliding cavity 311 in the circumferential direction. The opening end of the sliding cavity 311 has a first limiting wall 312. The first limiting wall 312 can abut against the mating segment 331 to limit the extreme position of the contact portion 330, thereby preventing the contact portion 330 from completely separating from the mounting portion 310, and further improving the stability of the action. In addition, the mating segment 331 can also limit the elastic portion 320 within the sliding cavity 311, thereby preventing the elastic portion 320 from separating from the mounting portion 310 and the contact portion 330, and improving the structural stability of the probe assembly 300.

[0038] Further, refer to Figure 5 The contact portion 330 also includes a positioning segment 333, which is connected to a side of the mating segment 331 away from the contact segment 332. In the radial direction of the contact portion 330, the mating segment 331 protrudes relative to the positioning segment 333, and one end of the elastic portion 320 is sleeved on the positioning segment 333. Specifically, the elastic portion 320 can use a spring, and the positioning segment 333 can limit the elastic portion 320 to avoid the elastic portion 320 from being displaced relative to the contact portion 330, which is beneficial to improving the structural stability of the probe assembly 300.

[0039] Further, refer to Figure 5The first through hole 112 includes a limiting section 1121 and an extending section 1122 which are connected in sequence along the first direction. The cross-sectional area of ​​the limiting section 1121 is greater than the cross-sectional area of ​​the extending section 1122. The contact section 332 can pass through the extending section 1122. A second limiting wall 1123 is provided between the limiting section 1121 and the extending section 1122. One end of the mounting portion 310 away from the circuit board 400 abuts against the second limiting wall 1123. The second limiting wall 1123 can limit the mounting portion 310 to prevent the mounting portion 310 from being separated from the first through hole 112, which is beneficial to improving the structural stability of the hot shoe plug.

[0040] Further, refer to Figure 2 and Figure 4 The housing 100 includes a first mounting member 110 and a second mounting member 120 connected to each other. The first mounting member 110 has a first mounting cavity 111 and a first through hole 112. The second mounting member 120 has a second mounting cavity 121 and a mounting hole 122. The first through hole 112, the first mounting cavity 111, the mounting hole 122, and the second mounting cavity 121 are sequentially connected along a first direction. Part of the support frame 200 is accommodated in the mounting hole 122. A surface of one side of the support frame 200 away from the contact portion 330 is flush with the bottom wall of the second mounting cavity 121. The circuit board 400 contacts the bottom wall of the second mounting cavity 121 and a side of the support frame 200 away from the contact portion 330. When installing the circuit board 400, the bottom wall of the second installation cavity 121 and the side of the support frame 200 away from the contact portion 330 can jointly serve as the installation reference of the circuit board 400. After the installation of the circuit board 400 is completed, the bottom wall of the second installation cavity 121 and the side of the support frame 200 away from the contact portion 330 can jointly support the circuit board 400, which is beneficial to improving the stability of the installation of the circuit board 400.

[0041] Further, refer to Figure 2 and Figure 4 The hot shoe plug further includes a fixing bolt 500, and the support frame 200 further includes a fixing hole 220 extending along the first direction. The fixing bolt 500 is passed through the circuit board 400 and the fixing hole 220 and is threadedly connected to the first mounting member 110. The fixing bolt 500 can fix the circuit board 400, the support frame 200 and the first mounting member 110 together to improve the structural stability of the hot shoe plug.

[0042] Further, refer to Figure 2 and Figure 4The hot shoe plug further includes a positioning rod 600, the extension direction of the positioning rod 600 is parallel to the first direction, the positioning rod 600 is connected to one of the first mounting member 110 and the second mounting member 120, and is disposed through the other of the first mounting member 110 and the second mounting member 120. During the installation process of the first mounting member 110 and the second mounting member 120, the positioning rod 600 can play a positioning and guiding role to ensure the accuracy of the relative position of the first mounting member 110 and the second mounting member 120, which is conducive to reducing the difficulty of installation.

[0043] Further, refer to Figure 2 The circuit board 400 includes a board body 410 and a cable connection portion 420. The cable connection portion 420 is connected to a side of the board body 410 away from the support frame 200 and protrudes relative to the board body 410. The cable connection portion 420 is used to connect with the cable end to achieve circuit connection inside the flash.

[0044] Further, refer to Figures 1 to 4 The hot shoe plug also includes a locking wheel 700, which is threadedly connected to the first mounting member 110. When the hot shoe plug is mated with the hot shoe socket, turning the locking wheel 700 can move the locking wheel 700 along the first direction to tighten the mating point between the hot shoe plug and the hot shoe socket to ensure the stability of the connection.

[0045] A flashlight provided in an embodiment of the second aspect of the present invention comprises a hot shoe plug provided in any embodiment of the first aspect of the present invention. In the hot shoe plug provided in the embodiment of the first aspect of the present invention, the mounting portions 310 of the plurality of probe assemblies 300 are arranged one by one in correspondence with the second through holes 210 on the support frame 200, and the support frame 200 can limit the plurality of probe assemblies 300 to ensure that the relative positions of the plurality of probe assemblies 300 remain unchanged during the installation of the circuit board 400, thereby avoiding contact short circuits between adjacent probe assemblies 300, which is beneficial to improving the yield rate of the hot shoe plug, and further beneficial to improving the yield rate of the flashlight.

[0046] The embodiments of the utility model are described in detail above in conjunction with the accompanying drawings, but the utility model is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in the relevant technical field without departing from the purpose of the utility model. In addition, the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

Claims

1. A hot shoe plug, characterized in that: include: A housing having a first installation cavity and a plurality of first through holes connected to the first installation cavity, wherein the first through holes extend along a first direction; A support frame, at least partially accommodated in the first installation cavity, the support frame having a plurality of second through holes extending along the first direction, each of the second through holes correspondingly connected to one of the first through holes; A probe assembly, comprising a mounting portion, an elastic portion and a contact portion, wherein the contact portion extends along the first direction, the contact portion is slidably connected to the mounting portion along the first direction, the elastic portion extends along the first direction and two ends are respectively connected to the mounting portion and the contact portion, a plurality of probe assemblies are provided, the contact portion of each probe assembly is correspondingly penetrated through a first through hole, the contact portion can partially extend to the outside of the shell, the mounting portion of each probe assembly is correspondingly penetrated through a second through hole, and one end of the mounting portion away from the contact portion protrudes relative to the support frame; A circuit board is located at a side of the support frame away from the contact portion, and the circuit board is electrically connected to the protruding portion of the mounting portion.

2. The hot shoe plug according to claim 1, characterized in that: The mounting portion has a sliding cavity extending along the first direction, and one end of the mounting portion away from the circuit board has an opening connected to the sliding cavity. The elastic portion is accommodated in the sliding cavity, and the contact portion is at least partially accommodated in the sliding cavity. The contact portion contacts the inner side wall of the sliding cavity in the circumferential direction, and at least part of the contact portion can extend from the opening.

3. The hot shoe plug according to claim 2, characterized in that: The contact portion includes a mating segment and a contact segment connected in sequence along the first direction. In the radial direction of the contact portion, the mating segment protrudes relative to the contact segment. The mating segment contacts the inner wall of the sliding cavity in the circumferential direction. The opening end of the sliding cavity has a first limiting wall, and the first limiting wall can abut against the mating segment.

4. The hot shoe plug according to claim 3, characterized in that: The contact portion further comprises a positioning segment, which is connected to a side of the matching segment away from the contact segment. In the radial direction of the contact portion, the matching segment protrudes relative to the positioning segment, and one end of the elastic portion is sleeved on the positioning segment.

5. The hot shoe plug according to claim 3, characterized in that: The first through hole includes a limiting section and an extending section connected in sequence along a first direction, the cross-sectional area of ​​the limiting section is larger than the cross-sectional area of ​​the extending section, a second limiting wall is provided between the limiting section and the extending section, one end of the mounting portion away from the circuit board abuts against the second limiting wall, and the contact section can pass through the extending section.

6. The hot shoe plug according to claim 1, characterized in that: The shell includes a first mounting member and a second mounting member connected to each other, the first mounting member has the first mounting cavity and the first through hole, the second mounting member has the second mounting cavity and the mounting hole, the first through hole, the first mounting cavity, the mounting hole, and the second mounting cavity are connected in sequence along the first direction, a portion of the support frame is accommodated in the mounting hole, a side surface of the support frame away from the contact portion is flush with the bottom wall of the second mounting cavity, and the circuit board contacts the bottom wall of the second mounting cavity and a side of the support frame away from the contact portion.

7. The hot shoe plug according to claim 6, characterized in that: The hot shoe plug further includes a fixing bolt, and the support frame further includes a fixing hole extending along the first direction. The fixing bolt passes through the circuit board and the fixing hole and is threadedly connected to the first mounting member.

8. The hot shoe plug according to claim 6, characterized in that: The hot shoe plug also includes a positioning rod, the extension direction of which is parallel to the first direction, the positioning rod is connected to one of the first mounting member and the second mounting member, and passes through the other of the first mounting member and the second mounting member.

9. The hot shoe plug according to claim 1, characterized in that: The circuit board includes a board body and a cable connecting portion. The cable connecting portion is connected to a side of the board body away from the supporting frame and protrudes relative to the board body.

10. A flashlight, characterized in that: The invention comprises a hot shoe plug as claimed in any one of claims 1 to 9.

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