An electrical connection mechanism and an electrical appliance

Abstract

This utility model discloses an electrical connection mechanism and an electrical appliance, relating to the field of electrical technology. The electrical connection mechanism includes a housing, a conductive sheet, a contact sheet, a supporting member, and an elastic member. The housing has interconnected contact grooves and guide grooves. The conductive sheet is installed in the contact groove, and the supporting member is slidably disposed in the guide groove. One end of the elastic member abuts against the supporting member, and the other end abuts against the housing. The contact sheet is inserted into the contact groove, and the supporting member is used to press the contact sheet and conductive sheet together under the elastic force of the elastic member. Compared with the prior art, the electrical connection mechanism provided by this utility model, due to the use of a conductive sheet installed in the contact groove and a supporting member connected to the elastic member, can achieve rapid installation while ensuring connection reliability, improving installation efficiency, saving time and effort, avoiding the risk of stripping, improving safety and stability, and extending service life.

Description

Technical Field

[0001] This utility model relates to the field of electrical technology, and in particular to an electrical connection mechanism and an electrical appliance. Background Technology

[0002] A terminal block is a component used for electrical connections, facilitating wiring. Most terminal blocks on the market are currently fixed with screws, which tightly connect and secure the contact and conductive plates to the terminal block. However, screw fixing is time-consuming and labor-intensive, resulting in low installation efficiency. Furthermore, screws are prone to stripping, leading to poor safety and stability, and a shorter lifespan. Utility Model Content

[0003] The problem solved by this invention is how to achieve rapid installation while ensuring connection reliability, improve installation efficiency, save time and effort, avoid the risk of stripped threads, improve safety and stability, and extend service life.

[0004] To solve the above problems, the technical solution of this utility model is implemented as follows:

[0005] In a first aspect, this utility model provides an electrical connection mechanism, including a housing, a conductive sheet, a contact sheet, a supporting member, and an elastic member. The housing has an interconnected contact groove and a guide groove. The conductive sheet is installed in the contact groove, and the supporting member is slidably disposed in the guide groove. One end of the elastic member abuts against the supporting member, and the other end abuts against the housing. The contact sheet is inserted into the contact groove, and the supporting member is used to press the contact sheet and the conductive sheet together under the elastic force of the elastic member. Compared with the prior art, the electrical connection mechanism provided by this utility model, due to the use of a conductive sheet installed in the contact groove and a supporting member connected to the elastic member, can achieve rapid installation while ensuring connection reliability, improve installation efficiency, save time and effort, avoid the risk of stripping, improve safety and stability, and extend service life.

[0006] Furthermore, the supporting component includes a guide slide and a limiting block connected to each other. The guide slide slide slides in a sliding engagement with the guide slide groove, and the elastic element abuts against the guide slide slide. A supporting surface is provided on the side of the guide slide slide near the limiting block, which abuts against the contact piece. The contact piece has a through hole, and the limiting block is used to extend into the through hole to limit the contact piece. This prevents the contact piece from shifting relative to the conductive piece, avoiding the situation where the contact piece accidentally falls out of the contact groove.

[0007] Furthermore, the limiting block is provided with a guide slope and a limiting surface. The guide slope is used to slide relative to the connector when it is inserted, and the limiting surface is used to limit the connector after the limiting block extends into the through hole. This facilitates the installation of the connector and achieves a labor-saving effect.

[0008] Furthermore, the limiting surface is perpendicular to the supporting surface; and / or, a preset angle is formed between the guide slope and the supporting surface, with the preset angle ranging from 30 degrees to 60 degrees. A reasonable preset angle can improve the guiding effect, making it easier to insert the contact plate into the contact slot, saving time and effort.

[0009] Furthermore, the supporting component also includes a guide post, which is connected to the side of the guide slide away from the limiting block, and the elastic component is sleeved on the guide post. The guide post can limit and guide the elastic component to ensure that the elastic component can only extend and retract along the sliding direction of the supporting component, so that the elastic force direction of the elastic component is always the same as the sliding direction of the supporting component, ensuring the reliability and efficiency of the elastic force application.

[0010] Furthermore, the supporting component also includes a toggle rod, which is connected to the guide slide. The housing also has a clearance groove communicating with the guide slide groove. The toggle rod extends out of the clearance groove and is used to drive the limiting block out of the through hole through the guide slide under the action of external force. This facilitates the removal of the contact piece and enables quick assembly and disassembly of the contact piece.

[0011] Furthermore, the conductive sheet has through holes, the positions of which correspond to the positions of the via holes. The through holes are used for the insertion of the limiting block. This ensures that the limiting block can completely pass through the via holes, thereby improving the stability of the fit between the limiting block and the via holes and preventing displacement of the contact plate relative to the conductive sheet.

[0012] Furthermore, a first boss and a second boss are provided at opposite ends of the junction groove. The height of both the first boss and the second boss is less than or equal to the thickness of the conductive sheet, and the conductive sheet is sandwiched between the first boss and the second boss. The first boss and the second boss work together to limit the conductive sheet and fix its relative position to the junction groove.

[0013] Furthermore, the housing includes a base and a top cover, with the base and top cover snapped together. An electrical contact groove and a guide groove are both formed in the base, and a limiting groove is formed in the top cover. The elastic element extends into the limiting groove and abuts against the end wall of the limiting groove. The depth direction of the limiting groove is the same as the axial direction of the guide post. The limiting groove can limit the elastic element, further ensuring that the elastic element can only extend and retract along the sliding direction of the abutting element, improving the reliability and efficiency of the elastic force application.

[0014] Furthermore, there are two of each of the following components: the retaining member, the electrical contact piece, the elastic member, and the guide groove. Two electrical contact pieces are inserted into the two ends of the electrical contact groove in a one-to-one correspondence. Each retaining member is used to press one electrical contact piece and one conductive piece together under the elastic force of the elastic member, so that the two electrical contact pieces are connected through the conductive piece. This allows the two electrical contact pieces to quickly conduct electricity, achieving the electrical connection function.

[0015] Furthermore, an insulating part is provided inside the electrical contact groove to separate the two electrical contact pieces. This prevents the two electrical contact pieces from directly contacting each other during insertion into the electrical contact groove, thereby avoiding poor contact and the generation of electrical sparks, and improving safety.

[0016] Secondly, this utility model provides an electrical appliance, including an appliance body and the aforementioned electrical connection mechanism. The electrical connection mechanism includes a housing, a conductive sheet, a contact sheet, a supporting member, and an elastic member. The housing has interconnected contact grooves and guide grooves. The conductive sheet is installed in the contact groove, and the supporting member is slidably disposed in the guide groove. One end of the elastic member abuts against the supporting member, and the other end abuts against the housing. The contact sheet is inserted into the contact groove, and the supporting member presses the contact sheet and conductive sheet together under the elastic force of the elastic member. The appliance body is electrically connected to the contact sheet. This electrical appliance enables rapid installation while ensuring reliable connection, improving installation efficiency, saving time and effort, avoiding the risk of stripping, improving safety and stability, and extending service life. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the electrical connection mechanism described in the first embodiment of this utility model;

[0018] Figure 2 This is a cross-sectional view of the electrical connection mechanism described in the first embodiment of this utility model;

[0019] Figure 3 This is a cross-sectional view of the sliding fit between the abutment and the housing in the electrical connection mechanism described in the first embodiment of this utility model;

[0020] Figure 4 This is a structural schematic diagram of the supporting member in the electrical connection mechanism according to the first embodiment of the present invention from one perspective;

[0021] Figure 5 This is a schematic diagram of the supporting member in the electrical connection mechanism according to the first embodiment of the present invention from another perspective;

[0022] Figure 6 This is a schematic diagram of the electrical connection mechanism of the first embodiment of the present invention, showing the structure of the contact piece.

[0023] Figure 7 This is a schematic diagram of the structure of the conductive sheet in the electrical connection mechanism described in the first embodiment of this utility model;

[0024] Figure 8 This is a schematic diagram of the structure of the upper cover of the housing in the electrical connection mechanism described in the first embodiment of this utility model.

[0025] Explanation of reference numerals in the attached figures:

[0026] 100 - Electrical connection mechanism; 110 - Housing; 111 - Electrical receiving groove; 112 - Guide groove; 113 - Relief groove; 114 - First boss; 115 - Second boss; 116 - Base; 1161 - Slot; 117 - Top cover; 1171 - Limiting groove; 1172 - Buckle; 118 - Isolation part; 120 - Conductive sheet; 121 - Through hole; 130 - Electrical receiving sheet; 131 - Through hole; 140 - Supporting member; 141 - Guide slide; 142 - Limiting block; 143 - Supporting surface; 144 - Guide slope; 145 - Limiting surface; 146 - Guide post; 147 - Actuating rod; 150 - Elastic element. Detailed Implementation

[0027] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0028] First Embodiment

[0029] Please refer to the reference. Figures 1 to 8 This utility model provides an electrical connection mechanism 100 for achieving electrical connections. It enables rapid installation while ensuring connection reliability, improving installation efficiency, saving time and effort, avoiding the risk of stripped threads, enhancing safety and stability, and extending service life.

[0030] The electrical connection mechanism 100 includes a housing 110, a conductive sheet 120, a contact sheet 130, a supporting member 140, and an elastic member 150. The housing 110 has a contact groove 111 and a guide groove 112 that communicate with each other. The conductive sheet 120 is installed in the contact groove 111. The supporting member 140 is slidably disposed in the guide groove 112, and the supporting member 140 can slide relative to the guide groove 112, which guides and limits the supporting member 140. One end of the elastic member 150 abuts against the supporting member 140, and the other end abuts against the housing 110. The elastic member 150 is always in a compressed state to apply elastic force to the supporting member 140, causing the supporting member 140 to tend to extend into the contact groove 111. The contact piece 130 is inserted into the contact groove 111. The retaining member 140, under the elastic force of the elastic member 150, presses the contact piece 130 and the conductive piece 120 together to ensure a tight fit between them, thus enabling electrical connection. In this way, during the installation of the electrical connection mechanism 100, only the contact piece 130 needs to be inserted into the contact groove 111. The contact piece 130 will then be tightly fitted against the conductive piece 120 under the action of the elastic member 150 and the retaining member 140, eliminating the need for screws. This ensures reliable connection while enabling rapid installation, improving installation efficiency, saving time and effort, avoiding the risk of stripping threads, enhancing safety and stability, and extending service life.

[0031] In this embodiment, the conductive sheet 120 and the receiving sheet 130 are parallel to each other, the sliding direction of the guide groove 112 is perpendicular to the receiving groove 111, that is, the sliding direction of the abutment 140 is perpendicular to the conductive sheet 120 and the receiving sheet 130, and the abutment force direction of the abutment 140 on the receiving sheet 130 is perpendicular to the receiving sheet 130, so as to enhance the force application effect, ensure that the receiving sheet 130 is pressed tightly on the conductive sheet 120, and improve the connection reliability.

[0032] Preferably, the supporting member 140 includes a guide slide 141 and a limiting block 142 connected to each other. The guide slide 141 is slidably engaged with the guide groove 112, allowing the guide slide 141 to slide relative to the guide groove 112, which in turn guides and limits the guide slide 141. An elastic member 150 abuts against the guide slide 141, and a supporting surface 143 is provided on the side of the guide slide 141 near the limiting block 142. The supporting surface 143 abuts against the contact piece 130. Under the elastic force of the elastic member 150, the guide slide 141 tends to move towards the contact piece 130, causing the supporting surface 143 to abut against the contact piece 130, thereby applying pressure to the contact piece 130 through the supporting surface 143 and pressing the contact piece 130 firmly onto the conductive sheet 120. Specifically, the contact piece 130 has a through hole 131, and the limiting block 142 is used to extend into the through hole 131 and cooperate with the through hole 131. The holding member 140 can limit the contact piece 130 through the cooperation of the limiting block 142 and the through hole 131 to prevent the contact piece 130 from being displaced relative to the conductive piece 120 and to avoid the contact piece 130 from accidentally coming out of the contact groove 111.

[0033] Correspondingly, the conductive sheet 120 has a through hole 121, the position of which corresponds to the position of the through hole 131. The through hole 121 is used for the limit block 142 to extend into, so as to ensure that the limit block 142 can completely pass through the through hole 131, thereby improving the stability of the fit between the limit block 142 and the through hole 131 and preventing the contact sheet 130 from being displaced relative to the conductive sheet 120.

[0034] It should be noted that the through hole 131 on the contact piece 130 is the screw hole in the contact piece 130 of the prior art for screws to pass through, and the through hole 121 on the conductive piece 120 is the screw hole in the conductive piece 120 of the prior art for screws to pass through, so as to achieve the universality of the contact piece 130 and the conductive piece 120, eliminating the need to separately produce the contact piece 130 and the conductive piece 120 adapted to the retainer 140, thereby reducing production costs. Furthermore, when the holding member 140 presses the contact piece 130 onto the conductive sheet 120, on the one hand, the elastic member 150 applies pressure to the contact piece 130 through the holding surface 143 of the guide slide 141, which presses the contact piece 130 tightly to prevent the contact piece 130 from displacing relative to the conductive sheet 120. On the other hand, the cooperation between the limiting block 142 and the through hole 131 can limit the contact piece 130, further preventing the contact piece 130 from displacing relative to the conductive sheet 120 and improving the connection reliability between the conductive sheet 120 and the contact piece 130.

[0035] Furthermore, the limiting block 142 is provided with a guide slope 144 and a limiting surface 145. The guide slope 144 is located close to the opening of the power receiving groove 111, and the limiting surface 145 is located away from the opening of the power receiving groove 111. The guide slope 144 is used to slide relative to the power receiving piece 130 when the power receiving piece 130 is inserted, and the limiting surface 145 is used to limit the power receiving piece 130 after the limiting block 142 extends into the through hole 131, so as to facilitate the installation of the power receiving piece 130 and achieve the effect of saving effort. Specifically, during the process of inserting the contactor 130 into the contactor groove 111, the insertion end of the contactor 130 first contacts the guide slope 144 and slides relative to the guide slope 144 under the action of external force. During this process, the contactor 130 overcomes the elastic force of the elastic member 150 under the action of external force, pushing the entire holding member 140 to slide in the direction of retracting out of the contactor groove 111; when the limiting block 142 is completely located on the side of the contactor 130 away from the conductive piece 120, the holding member... The component 140 remains stationary; when the contact piece 130 moves to the preset position, the position of the abutment 140 corresponds to the position of the through hole 131. Under the elastic force of the elastic component 150, the abutment 140 extends into the through hole 131 until the abutment surface 143 of the guide slide 141 abuts against the contact piece 130. At this time, the limiting surface 145 of the limiting block 142 cooperates with the inner wall of the through hole 131 to achieve the limiting function and prevent the contact piece 130 from being displaced relative to the conductive piece 120.

[0036] Specifically, the limiting surface 145 is perpendicular to the abutting surface 143 to ensure the limiting effect and further prevent the contact piece 130 from displacing relative to the conductive piece 120. A preset angle is formed between the sliding inclined surface 144 and the abutting surface 143, ranging from 30 degrees to 60 degrees. A reasonable preset angle can improve the sliding effect, making it easier to insert the contact piece 130 into the contact groove 111, saving time and effort. In this embodiment, the preset angle is 45 degrees, but it is not limited to this. In other embodiments, the preset angle can be 30 degrees or 60 degrees; the size of the preset angle is not specifically limited.

[0037] Preferably, the supporting member 140 further includes a guide post 146. The guide post 146 is connected to the side of the guide slide 141 away from the limiting block 142. The elastic member 150 is sleeved on the guide post 146. The guide post 146 can limit and guide the elastic member 150 to ensure that the elastic member 150 can only extend and retract along the sliding direction of the supporting member 140, so that the elastic force direction of the elastic member 150 is always the same as the sliding direction of the supporting member 140, ensuring the reliability and efficiency of the elastic force application.

[0038] In this embodiment, the elastic element 150 is a spring, but it is not limited to this. In other embodiments, the elastic element 150 may also be elastic rubber. The type of elastic element 150 is not specifically limited.

[0039] Preferably, the supporting member 140 further includes a toggle lever 147. The toggle lever 147 is connected to the guide slide table 141, and the housing 110 also has a clearance groove 113 communicating with the guide slide groove 112. The toggle lever 147 extends out of the clearance groove 113. The toggle lever 147 is used to drive the limiting block 142 out of the through hole 131 through the guide slide table 141 under the action of external force, so as to facilitate the removal of the contact piece 130 and realize the quick removal and installation of the contact piece 130. Specifically, in the process of removing the contact piece 130, the toggle lever 147 is first moved away from the contact piece 130 to overcome the elastic force of the elastic member and drive the entire supporting member 140 to move away from the contact piece 130 until the limiting block 142 retracts out of the through hole 131; then the contact piece 130 is pulled out from the contact groove 111 so that the contact piece 130 is completely separated from the conductive piece 120.

[0040] In this embodiment, the guide slide 141, the limiting block 142, the guide post 146, and the actuating rod 147 are integrally formed to improve the connection strength. However, this is not the only embodiment. In other embodiments, the guide slide 141, the limiting block 142, the guide post 146, and the actuating rod 147 can also be separately arranged and detachably connected to facilitate production, processing, and maintenance.

[0041] It is worth noting that the two ends of the receiving groove 111 are provided with a first protrusion 114 and a second protrusion 115, respectively. The conductive sheet 120 is sandwiched between the first protrusion 114 and the second protrusion 115. The first protrusion 114 and the second protrusion 115 work together to limit the conductive sheet 120 and fix the relative position of the conductive sheet 120 and the receiving groove 111. Specifically, the height of the first protrusion 114 and the second protrusion 115 is less than or equal to the thickness of the conductive sheet 120, so as to avoid the first protrusion 114 and the second protrusion 115 blocking the conductive sheet 120 and affecting the contact effect between the conductive sheet 120 and the receiving sheet 130, thus ensuring the reliability of the connection between the conductive sheet 120 and the receiving sheet 130.

[0042] The housing 110 includes a base 116 and a top cover 117. The base 116 and the top cover 117 are snapped together for easy installation and disassembly. An electrical connection groove 111 and a guide groove 112 are both formed in the base 116. The top cover 117 has a limiting groove 1171. An elastic member 150 extends into the limiting groove 1171 and abuts against the end wall of the limiting groove 1171. The depth direction of the limiting groove 1171 is the same as the axial direction of the guide post 146. The limiting groove 1171 can limit the elastic member 150, further ensuring that the elastic member 150 can only extend and retract along the sliding direction of the supporting member 140, thereby improving the reliability and efficiency of the elastic force application.

[0043] Specifically, the base 116 has four slots 1161, and the top cover 117 has four buckles 1172. The four slots 1161 are arranged in a rectangular array, and each buckle 1172 engages with one slot 1161. The four buckles 1172 and the four slots 1161 work together to improve the engagement effect and prevent the top cover 117 from accidentally detaching from the base 116, ensuring stability and reliability.

[0044] It should be noted that there are two of each of the following: the supporting member 140, the electrical contact piece 130, the elastic member 150, and the guide groove 112. Both guide grooves 112 are connected to the electrical contact groove 111. The two electrical contact pieces 130 are inserted into the two ends of the electrical contact groove 111 in a one-to-one correspondence. Each supporting member 140 is used to press one electrical contact piece 130 and the conductive piece 120 together under the elastic force of one elastic member 150, so that the two electrical contact pieces 130 are connected through the conductive piece 120, thereby enabling the two electrical contact pieces 130 to quickly conduct and realize the electrical connection function.

[0045] Furthermore, an isolation portion 118 is provided inside the electrical contact groove 111. The isolation portion 118 is located above the conductive sheet 120. The isolation portion 118 is used to separate the two electrical contact sheets 130 to prevent the two electrical contact sheets 130 from directly contacting each other during the insertion of the electrical contact groove 111, thereby avoiding poor contact and the generation of electric sparks, and improving safety.

[0046] The electrical connection mechanism 100 of this embodiment has a housing 110 with interconnected contact groove 111 and guide groove 112. A conductive sheet 120 is installed in the contact groove 111, and a retaining member 140 is slidably disposed in the guide groove 112. One end of an elastic member 150 abuts against the retaining member 140, and the other end abuts against the housing 110. A contact sheet 130 is inserted into the contact groove 111, and the retaining member 140 is used to press the contact sheet 130 and the conductive sheet 120 together under the elastic force of the elastic member 150. Compared with the prior art, the electrical connection mechanism 100 provided by this invention, due to the use of a conductive sheet 120 installed in the contact groove 111 and a retaining member 140 connected to the elastic member 150, can achieve rapid installation while ensuring connection reliability, improving installation efficiency, saving time and effort, avoiding the risk of stripping, improving safety and stability, and extending service life.

[0047] Second Embodiment

[0048] This utility model provides an electrical appliance (not shown) for operation when powered on. The electrical appliance includes an appliance body (not shown) and an electrical connection mechanism 100. The basic structure, principle, and technical effects of the electrical connection mechanism 100 are the same as those in the first embodiment. For the sake of brevity, any parts not mentioned in this embodiment can be referred to the corresponding content in the first embodiment.

[0049] In this embodiment, one contact plate 130 is connected to the electrical appliance body via a wire, and the other contact plate 130 is connected to the power source. The power source can provide power to the electrical appliance body in sequence through one contact plate 130, the conductive plate 120 and the other contact plate 130, so that the electrical appliance body can operate stably.

[0050] The beneficial effects of the electrical appliance described in this embodiment are the same as those in the first embodiment, and will not be repeated here.

[0051] Although the present invention has been disclosed above, it is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

Claims

1. An electrical connection mechanism, characterized by, The device includes a housing, a conductive sheet, a contact sheet, a retaining member, and an elastic member. The housing has an interconnected contact groove and a guide groove. The conductive sheet is installed in the contact groove. The retaining member is slidably disposed in the guide groove. One end of the elastic member abuts against the retaining member, and the other end abuts against the housing. The contact sheet is inserted into the contact groove. The retaining member is used to press the contact sheet and the conductive sheet together under the elastic force of the elastic member.

2. The electrical connection mechanism according to claim 1, characterized in that The supporting member includes a guide slide and a limiting block connected to each other. The guide slide slide is slidably engaged with the guide slide groove. The elastic member abuts against the guide slide slide. The guide slide slide has an abutting surface on the side near the limiting block. The abutting surface is used to abut against the contact piece. The contact piece has a through hole. The limiting block is used to extend into the through hole to limit the position of the contact piece.

3. The electrical connection mechanism of claim 2, wherein, The limiting block is provided with a guide slope and a limiting surface opposite to each other. The guide slope is used to slide relative to the contact piece when the contact piece is inserted, and the limiting surface is used to limit the contact piece after the limiting block extends into the through hole.

4. The electrical connection mechanism of claim 3, wherein, The limiting surface is perpendicular to the supporting surface; And / or, a preset angle is formed between the guide slope and the abutment surface, the preset angle being in the range of 30 degrees to 60 degrees.

5. The electrical connection mechanism of claim 2, wherein, The abutment also includes a guide post, which is connected to the side of the guide slide away from the limiting block, and the elastic element is sleeved on the guide post.

6. The electrical connection mechanism of claim 2, wherein, The supporting member also includes a toggle rod, which is connected to the guide slide table. The housing also has a clearance groove that communicates with the guide slide groove. The toggle rod extends out of the clearance groove and is used to drive the limiting block to retract out of the through hole through the guide slide table under the action of external force.

7. The electrical connection mechanism of claim 2, wherein, The conductive sheet has a through hole, the position of which corresponds to the position of the through hole, and the through hole is used for the limit block to extend into.

8. The electrical connection mechanism of claim 1, wherein, The two ends of the electrical receiving groove are provided with a first boss and a second boss, the height of the first boss and the second boss are both less than or equal to the thickness of the conductive sheet, and the conductive sheet is sandwiched between the first boss and the second boss.

9. The electrical connection mechanism of claim 1, wherein, The housing includes a base and a top cover. The base is snapped into the top cover. The electrical connection groove and the guide groove are both formed in the base. The top cover has a limiting groove. The elastic element extends into the limiting groove and abuts against the end wall of the limiting groove.

10. The electrical connection mechanism of claim 1, wherein, The number of the abutment, the electrical contact piece, the elastic member, and the guide groove are all two. The two electrical contact pieces are inserted into the two ends of the electrical contact groove in a one-to-one correspondence. Each abutment is used to press one electrical contact piece and one conductive piece together under the elastic force of one elastic member, so that the two electrical contact pieces are connected through the conductive piece.

11. The electrical connection mechanism of claim 10, wherein, The electrical contact groove has a protruding isolation part, which is used to separate the two electrical contact pieces.

12. An electrical appliance characterized by It includes an electrical body and an electrical connection mechanism as described in any one of claims 1 to 9, wherein the electrical body is electrically connected to the contact piece.

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