Cold and hot compress massage head and fascia gun

Abstract

The utility model discloses cold and hot compress massage head and fascia gun, cold and hot compress massage head, including casing, semiconductor refrigerating fin, radiator, fan and multiple electric contact, the casing has the head with tail portion of being linked, the head is equipped with the air hole, the end face eccentricity of tail portion is equipped with the first eccentric column, the end face eccentricity of first eccentric column is equipped with the second eccentric column, the semiconductor refrigerating fin is fixed in the head, the radiator is located in the head and is with semiconductor refrigerating fin surface contact, the fan is located in the head and is close to the radiator, the electric contact is located on the end face of second eccentric column, a part of electric contact is electrically connected with semiconductor refrigerating fin, and another part of electric contact is electrically connected with the fan. In the tail portion end face coaxial arrangement two stage eccentric column, and in the second eccentric column end face of the innermost side concentration setting electric contact, insert just complete the foolproof positioning, guarantee each electric contact and gun body terminal always face each other and steady conduction, with simple eccentric injection molding structure replaces traditional electric slip ring.

Description

Technical Field

[0001] This utility model relates to the field of massager technology, and in particular to hot and cold compress massage heads and fascia guns. Background Technology

[0002] With the development of the fascia gun industry, designs where the gun body and massage head can be separated have emerged on the market. This allows a single gun body to accommodate massage heads of different structures to meet diverse user needs. To overcome the limitation of fascia guns having only one function, the industry has developed hot and cold compress massage heads that combine both cooling and heating functions. Since the tail of the massage head is often cylindrical, this results in circumferential rotation. To ensure stable conduction of the hot and cold compress massage heads, current technology uses an electric slip ring structure at the connection between the piston rod of the gun body and the hot and cold compress massage head. The adoption of an electric slip ring structure undoubtedly complicates the structure of the fascia gun and increases manufacturing costs. Utility Model Content

[0003] The technical problem solved by this utility model is to provide a simple and stable hot and cold compress massage head, and a fascia gun having the hot and cold compress massage head.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a hot and cold compress massage head, comprising:

[0005] The housing has a connected head and a tail. The head is provided with a vent. The tail is provided with a first eccentric post on its end face and a second eccentric post on its end face.

[0006] A semiconductor cooling chip, wherein the semiconductor cooling chip is fixed inside the head;

[0007] A heat sink, wherein the heat sink is disposed inside the head and in contact with the surface of the semiconductor cooling plate;

[0008] A fan, wherein the fan is located inside the head and close to the heat sink;

[0009] Multiple conductive contacts are provided on the end face of the second eccentric column. Some of the conductive contacts are electrically connected to the semiconductor cooling chip, and the other part of the conductive contacts are electrically connected to the fan.

[0010] In one embodiment, a plurality of the conductive contacts are arranged in an arc shape on the end face of the second eccentric post.

[0011] In one embodiment, a plurality of the conductive contacts are arranged in at least two rows on the end face of the second eccentric post.

[0012] In one embodiment, the first eccentric column is cylindrical, the second eccentric column is semi-cylindrical, and the arcuate wall of the second eccentric column is coplanar with the outer peripheral wall of the first eccentric column.

[0013] In one embodiment, thermally conductive silicone is sandwiched between the semiconductor cooling chip and the heat sink.

[0014] In one embodiment, a first sealing ring is fitted around the outer periphery of the first eccentric column.

[0015] In one embodiment, a second sealing ring is fitted around the outer periphery of the tail portion.

[0016] In one embodiment, the fan is positioned corresponding to the vent.

[0017] In one embodiment, a mesh cover is also provided inside the head, the mesh cover being configured corresponding to the vent.

[0018] To solve the above-mentioned technical problems, the second technical solution adopted by this utility model is: a fascia gun, including a gun body and the above-mentioned hot compress massage head. The gun body has a reciprocating piston rod, and the end of the piston rod is provided with a slot. The slot includes an outer section, a middle section and an inner section connected sequentially from the outside to the inside. The outer section cooperates with the tail, the middle section cooperates with the first eccentric column, and the inner section cooperates with the second eccentric column. The bottom surface of the inner section is provided with a terminal that contacts and conducts through the conductive contact.

[0019] The beneficial effects of this invention are as follows: Two eccentric columns are coaxially arranged on the tail end face, and conductive contacts are concentrated on the end face of the innermost second eccentric column. This ensures a unique and correct circumferential angle between the hot / cold massage head and the gun body slot, achieving foolproof positioning upon insertion. This completely eliminates rotational misalignment caused by impact or disassembly of the cylindrical tail, ensuring that each conductive contact and the gun body terminal are always aligned and stably connected. This allows for the replacement of traditional slip rings with a simple eccentric injection-molded structure, simplifying the number of parts, reducing manufacturing costs, and ensuring a continuous and reliable power supply to the semiconductor cooling chip and fan, enabling long-term stable operation of the hot / cold massage function. Furthermore, compared to a symmetrical end face design, the end face of the second eccentric column has a larger area, providing sufficient space to arrange a larger number of conductive contacts. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0021] Figure 1 This is a cross-sectional view of the hot and cold compress massage head and piston rod in embodiment one of this utility model;

[0022] Figure 2 This is a schematic diagram of the hot and cold compress massage head according to Embodiment 1 of this utility model;

[0023] Figure 3 This is a rear view of the hot and cold compress massage head according to Embodiment 1 of this utility model;

[0024] Figure 4 This is an exploded view of the hot and cold compress massage head according to Embodiment 1 of this utility model;

[0025] Figure 5 This is a schematic diagram of the piston rod in Embodiment 1 of this utility model.

[0026] Explanation of icon numbers:

[0027] 1. Heated massage head; 11. Housing; 111. Head; 112. Tail; 113. Vent; 114. First eccentric column; 115. Second eccentric column; 12. Semiconductor cooling chip; 13. Heat sink; 14. Fan; 15. Conductive contact; 16. Thermally conductive silicone; 17. First sealing ring; 18. Second sealing ring; 19. Mesh cover;

[0028] 2. Piston rod; 21. Slot; 211. Outer section; 212. Middle section; 213. Inner section; 22. Terminal;

[0029] 3. Circuit board. Detailed Implementation

[0030] The purpose, features, and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings.

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] It should be noted that if the embodiments of this utility model involve directional indicators such as up, down, left, right, front, back, etc., the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture as shown in the attached figure. If the specific posture changes, the directional indicators will also change accordingly.

[0033] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.

[0034] Furthermore, if the meaning of "and / or" in the entire text is to include three parallel solutions, taking "and A / or B" as an example, it includes solution A, solution B, and a solution that simultaneously satisfies both A and B. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0035] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0036] Example 1

[0037] Please refer to Figures 1 to 5One embodiment of this utility model is a fascia gun, including a gun body and a hot / cold massage head 1. The gun body has a reciprocating piston rod 2, and the end of the piston rod 2 is provided with a slot 21. The hot / cold massage head 1 includes a housing 11, a semiconductor cooling chip 12, a heat sink 13, a fan 14, and multiple conductive contacts 15. The housing 11 has a connected head 111 and a tail 112. The head 111 is provided with a vent 113. The end face of the tail 112 is eccentrically provided with a first eccentric post 114, and the end face of the first eccentric post 114 is eccentrically provided with a second eccentric post 115. The semiconductor cooling chip 12 is fixed inside the head 111 and disposed away from the tail 112. The heat sink 13 is disposed inside the head 111 and is in contact with the surface of the semiconductor cooling chip 12. Specifically, the semiconductor cooling chip 12... 2 is located on the side of the heat sink 13 away from the tail 112; the fan 14 is located inside the head 111 and close to the heat sink 13. In this embodiment, the fan 14 is located outside the heat sink 13; the conductive contact 15 is located on the end face of the second eccentric column 115. A portion of the conductive contact 15 is electrically connected to the semiconductor cooling chip 12, and another portion of the conductive contact 15 is electrically connected to the fan 14; the slot 21 includes an outer section 211, a middle section 212, and an inner section 213 connected sequentially from the outside to the inside. The outer section 211 cooperates with the tail 112, the middle section 212 cooperates with the first eccentric column 114, and the inner section 213 cooperates with the second eccentric column 115. The bottom surface of the inner section 213 is provided with a terminal 22 that contacts and conducts with the conductive contact 15.

[0038] The conductive contacts 15, in multiple numbers, are arranged in an arc shape on the end face of the second eccentric post 115. Alternatively, the conductive contacts 15, in multiple numbers, are arranged in at least two rows on the end face of the second eccentric post 115. This ensures that there is sufficient gap between adjacent conductive contacts 15, thereby preventing excessive heat generation due to current concentration in the same row of conductive contacts 15, which helps improve system safety and stability. Of course, the conductive contacts 15 can also be arranged in other ways, as needed.

[0039] In this embodiment, the first eccentric column 114 is cylindrical, and the second eccentric column 115 is semi-cylindrical. The arc-shaped wall of the second eccentric column 115 is coplanar with the outer peripheral wall of the first eccentric column 114. The semi-cylindrical shape of the second eccentric column 115, with its arc-shaped wall coplanar with the outer peripheral wall of the first eccentric column 114, allows for molding in a single injection molding process, resulting in a simple mold structure. Furthermore, the flat side of the semi-cylindrical column provides anti-misalignment, balancing processing economy and positioning reliability.

[0040] Thermally conductive silicone 16 is sandwiched between the semiconductor cooling chip 12 and the heat sink 13. The thermally conductive silicone 16 fills the microscopic gaps between the semiconductor cooling chip 12 and the heat sink 13, reduces the interfacial thermal resistance, enables rapid heat transfer between the hot and cold ends, improves cooling or heating efficiency, and absorbs impact vibrations to protect the brittle solder joints of the ceramic chip.

[0041] A first sealing ring 17 is sleeved on the outer periphery of the first eccentric post 114. The first sealing ring 17 forms a radial seal between the outer periphery of the first eccentric post 114 and the middle section 212 of the slot 21, preventing sweat and dust from entering the electrical area, reducing contact corrosion, and ensuring long-term low-resistance conduction.

[0042] A second sealing ring 18 is fitted around the outer periphery of the tail portion 112. The second sealing ring 18 is located between the outer periphery of the tail portion 112 and the outer section 211 of the slot 21, forming a secondary seal and simultaneously serving as a shock absorber and buffer, reducing the impact noise generated by high-frequency impacts and improving quiet operation. The number of second sealing rings 18 can be one or more. When there are multiple second sealing rings 18, at least two of the second sealing rings 18 have the same or different outlines. For example, one second sealing ring 18 may be annular, and another second sealing ring 18 may be sleeve-shaped.

[0043] Preferably, the fan 14 is positioned corresponding to the vent 113, with the fan 14 facing the vent 113 to form a straight airflow channel, reducing airflow deflection losses and improving heat dissipation efficiency.

[0044] The head 111 is also provided with a mesh cover 19, which is set corresponding to the vent 113. The mesh cover 19 covers the vent 113, which can prevent the user's fingers or foreign objects from touching the fan 14, while ensuring smooth airflow and improving the safety of use.

[0045] In one or more embodiments, the head 111 is further provided with a circuit board 3 electrically connected to the conductive contact 15. The circuit board 3 is provided with a working indicator light. The housing 11 is provided with a light guide column in the area corresponding to the working indicator light. The working indicator light is used to emit different colors of light to indicate whether the current hot and cold compress massage head 1 is in a cold compress state or a hot compress state.

[0046] The above are merely optional embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the inventive concept of this utility model and the contents of this utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. A hot and cold compress massage head, characterized in that, include The housing has a connected head and a tail. The head is provided with a vent. The tail is provided with a first eccentric post on its end face and a second eccentric post on its end face. A semiconductor cooling chip, wherein the semiconductor cooling chip is fixed inside the head; A heat sink, wherein the heat sink is disposed inside the head and in contact with the surface of the semiconductor cooling plate; A fan, wherein the fan is located inside the head and near the heat sink; Multiple conductive contacts are provided on the end face of the second eccentric column. Some of the conductive contacts are electrically connected to the semiconductor cooling chip, and the other part of the conductive contacts are electrically connected to the fan.

2. The hot and cold compress massage head according to claim 1, characterized in that, The conductive contacts, in multiple quantities, are arranged in an arc shape on the end face of the second eccentric post.

3. The hot and cold compress massage head according to claim 1, characterized in that, The conductive contacts, in multiple quantities, are arranged in at least two rows on the end face of the second eccentric post.

4. The hot and cold compress massage head according to claim 1, characterized in that, The first eccentric column is cylindrical, the second eccentric column is semi-cylindrical, and the arc-shaped wall of the second eccentric column is coplanar with the outer peripheral wall of the first eccentric column.

5. The hot and cold compress massage head according to claim 1, characterized in that, Thermally conductive silicone is sandwiched between the semiconductor cooling chip and the heat sink.

6. The hot and cold compress massage head according to claim 1, characterized in that, The outer circumference of the first eccentric column is fitted with a first sealing ring.

7. The hot and cold compress massage head according to claim 1, characterized in that, A second sealing ring is fitted around the outer periphery of the tail section.

8. The hot and cold compress massage head according to claim 1, characterized in that, The fan is positioned corresponding to the vent.

9. The hot and cold compress massage head according to claim 1, characterized in that, The head is also provided with a mesh cover, which is arranged corresponding to the vent.

10. A fascia gun, characterized in that, The device includes a gun body and a hot compress massage head as described in any one of claims 1-9. The gun body has a reciprocating piston rod, and the end of the piston rod is provided with a slot. The slot includes an outer section, a middle section, and an inner section that are connected sequentially from the outside to the inside. The outer section cooperates with the tail, the middle section cooperates with the first eccentric column, and the inner section cooperates with the second eccentric column. The bottom surface of the inner section is provided with a terminal that is in contact with the conductive contact and conducts electricity.

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