Male-female connector and water purifier

Abstract

The utility model relates to the technical field of household electrical appliances, and discloses a male and female connector and a water purifier, the male and female connector comprises a connector male end, a plurality of conductive columns and insulating partition plates are formed at the end part of the connector male end, the insulating partition plate is arranged between every two adjacent conductive columns, and the insulating partition plates are used for separating the plurality of conductive columns; a slot and an accommodating groove are formed in the end part of the connector female end, the slot is used for being in plug-in connection with the conductive column, the accommodating groove is used for accommodating the insulating partition plate, and the insulating partition plate is in clearance fit with the accommodating groove. According to the male and female connector provided by the embodiment of the utility model, the accommodating groove on the connector female end is arranged to be in clearance fit with the insulating partition plate, so that the requirement on the processing precision of the male and female connector is reduced, the rejection rate of the male and female connector is reduced, and the resistance which needs to be overcome in the plugging process of the male and female connector is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of household appliances, and particularly relates to a male-female head connector and a water purifier. Background Art

[0002] The male-female head connector is a commonly used component for aerial docking on household appliances such as water purifiers and hot water faucets. Taking a water purifier as an example, the male-female head connector usually includes a male connector end and a female connector end. The male connector end can be inserted into the female connector end to realize the electrical connection of the whole hot water faucet and the water purifier.

[0003] In the related art, the male connector end of the male-female head connector is provided with conductive posts and insulating partitions. The female end connected to it is provided with slots and receiving grooves for receiving the conductive posts and insulating partitions respectively. During the working process, the receiving groove and the insulating partition are in interference fit, so that the male connector end and the female connector end are reliably connected. However, such a setting leads to higher requirements for the processing accuracy of the receiving groove and the insulating partition, increases the rejection rate of the male-female head connector, and the male-female head connector needs to overcome greater resistance during the plugging and unplugging process. Summary of the Utility Model

[0004] In view of this, the utility model provides a male-female head connector and a water purifier to solve the defects in the related art that the male-female head connector has higher requirements for the processing accuracy of the receiving groove and the insulating partition, the rejection rate of the male-female head connector is relatively high, and the male connector end and the female connector end need to overcome greater resistance during the plugging and unplugging process.

[0005] In a first aspect, the utility model provides a male-female head connector, including:

[0006] A male connector end, at its end, there are formed conductive posts and insulating partitions. There are multiple conductive posts, and an insulating partition is provided between every two adjacent conductive posts. The insulating partition is used to separate the multiple conductive posts;

[0007] A female connector end, at its end, there are formed a slot and a receiving groove. The slot is used to be inserted into the conductive post, and the receiving groove is used to receive the insulating partition. The insulating partition and the receiving groove are in clearance fit.

[0008] Advantageous Effects: In the male-female head connector of the embodiment of the utility model, the male connector end is provided with conductive posts and insulating partitions. The insulating partitions are separated between two adjacent conductive posts, thereby extending the creepage distance between two adjacent conductive posts and increasing the electrical clearance between the two conductive posts, and further reducing the risk of arcing during the use of the male-female head connector.

[0009] On this basis, the receiving groove on the female end of the male-female head connector in the embodiment of the present utility model is set to be in clearance fit with the insulating partition, thereby reducing the requirement for the processing precision of the male-female head connector, reducing the rejection rate of the male-female head connector, and reducing the resistance that needs to be overcome during the plugging and unplugging process of the male-female head connector.

[0010] In an alternative embodiment, the insulating partition extends radially along the male end of the connector and extends from the axis of the male end of the connector to the edge of the male end of the connector.

[0011] Beneficial effect: By setting it in this way, each insulating partition can be used to separate the conductive columns on both sides.

[0012] In an alternative embodiment, the size of the insulating partition along the axial direction of the male end of the connector is L, and the minimum distance between two adjacent conductive columns is d1; 2L + d1 ≥ 8 mm, d1 ≥ 3.2 mm.

[0013] Beneficial effect: By setting it in this way, it can be ensured that the creepage distance and electrical clearance of the male-female head connector can both meet the safety regulations requirements for strong electrical connections, effectively solving the limitation in the related art that the male-female head connector can only be used for weak electrical signal connections. The male-female head connector in the embodiment of the present utility model can be used for both strong electrical signal connections and weak electrical signal connections.

[0014] In an alternative embodiment, there are four conductive columns, and the diameter of the conductive columns is d2, 1.9 mm ≤ d2 ≤ 2.1 mm.

[0015] Beneficial effect: By setting it in this way, the creepage distance of the male end of the connector can reach 20 mm, effectively reducing the risk of arcing during the use of the male-female head connector.

[0016] In an alternative embodiment, a sealing ring is provided on the outer periphery of one of the male end of the connector and the female end of the connector, and an external thread is formed on the other of the male end of the connector and the female end of the connector. The male-female head connector further includes:

[0017] A locking nut, on the inner wall of which there are internally threaded portions and annular protrusions arranged at intervals. The internally threaded portion can be connected to the external thread and make the annular protrusion in interference fit with the side of the sealing ring away from the internally threaded portion.

[0018] Beneficial effect: By setting it in this way, the locking nut can implement a reliable connection between the male end of the connector and the female end of the connector and is in interference fit with the sealing ring, thereby improving the sealing performance of the male-female head connector, preventing impurities such as moisture and dust from entering the inside of the male-female head connector, causing problems such as short circuits and corrosion, and affecting the normal operation of the male-female head connector and the safety performance of the equipment.

[0019] In an alternative embodiment, the sealing ring is sleeved on the female end of the connector. The inner diameter of the sealing ring is r1, and the outer diameter of the connection part between the female end of the connector and the sealing ring is r2, where 1.8 mm ≤ r2 - r1 ≤ 2.2 mm; and / or,

[0020] The thickness of the sealing ring is d3, where 1.8 mm ≤ d3 ≤ 2.2 mm.

[0021] Advantageous effects: With such a setting, the sealing ring can be used to abut against the annular convex part of the locking nut, thereby locking and connecting the female end of the connector to the male end of the connector, and can also be used for interference fit with the annular convex part, thereby achieving a waterproof effect.

[0022] In an alternative embodiment, the male-female head connector further includes:

[0023] A connecting cylinder, provided at the end of the male end of the connector and surrounding the conductive column. An external thread is provided on the outer circumference of the connecting cylinder. The outer end of the insulating partition is connected to the conductive column and encloses a cavity, and each cavity is provided with a conductive column.

[0024] Advantageous effects: The connecting cylinder can be used to set the external thread, thereby locking and connecting with the locking nut, and can also shield the insertion part of the conductive column and the slot after the conductive column is inserted into the slot, thereby helping to improve the sealing performance of the male-female head connector.

[0025] In an alternative embodiment, the male-female head connector further includes a spring piece disposed in the slot, and the spring piece is used for interference fit with the conductive column.

[0026] Advantageous effects: The spring piece can not only ensure reliable connection between the conductive column and the slot and prevent loosening, but also help to increase the contact area between the spring piece and the conductive column. In a preferred embodiment, the contact area between each spring piece and the conductive column is about 0.3 mm 2 , which can meet the requirement of carrying large current.

[0027] In an alternative embodiment, the spring piece includes:

[0028] A cylindrical section, disposed in the slot and capable of allowing the conductive column to be inserted;

[0029] A conical section, disposed at the end of the cylindrical section close to the bottom of the slot, including a plurality of elastic petals. The plurality of elastic petals are spaced along the circumferential direction of the cylindrical section, and in the direction away from the cylindrical section, the elastic petals are inclined in the direction of converging with each other.

[0030] Advantageous effects: When the male end of the connector is inserted into the female end of the connector, the conductive column can be inserted into the cylindrical section and the conical section in sequence, and the elastic petals can clamp the conductive column.

[0031] Among them, the cylindrical section can be used to contact the conductive column, thereby helping to increase the contact area between the elastic piece and the conductive column. The elastic flap can be used for interference fit with the conductive column, thereby ensuring reliable connection between the conductive column and the socket and preventing loosening, and can also play a certain guiding and centering role for the conductive column.

[0032] In a second aspect, the present invention also provides a water purifier, which includes the male-female head connector provided in the first aspect of the present invention.

[0033] Beneficial effects: The water purifier in the second aspect of the present invention includes or uses the male-female head connector provided in the first aspect of the present invention, and thus has its beneficial effects, that is, the receiving groove on the female end of the connector of the male-female head connector of the water purifier is set to have a clearance fit with the insulating partition, thereby reducing the requirement for the processing accuracy of the male-female head connector, reducing the rejection rate of the male-female head connector, and reducing the resistance that needs to be overcome during the plugging and unplugging process of the male-female head connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0035] Figure 1 A perspective view of a male-female end connector according to an embodiment of the present invention at an angle;

[0036] Figure 2 For Figure 1 An enlarged view of the male end of the male-female end connector shown;

[0037] Figure 3 For Figure 1 A front view of the male end of the male-female end connector shown;

[0038] Figure 4 For Figure 1 An enlarged view of the locking nut of the male-female end connector shown;

[0039] Figure 5 A perspective view of a male-female end connector according to an embodiment of the present invention at another angle;

[0040] Figure 6 For Figure 5 An enlarged view of the female end of the male-female end connector shown;

[0041] Figure 7 ForFigure 5 Front view of the female connector of the male-female connector shown;

[0042] Figure 8 Stereogram of the elastic piece of a male-female connector according to an embodiment of the present invention;

[0043] Figure 9 is Figure 8 Front view of the elastic piece shown;

[0044] Figure 10 is Figure 8 Side view of the elastic piece shown;

[0045] Figure 11 is Figure 8 Top view of the elastic piece shown;

[0046] Figure 12 is Figure 8 Bottom view of the elastic piece shown;

[0047] Figure 13 is Figure 8 Rear view of the elastic piece shown;

[0048] Figure 14 Sealing ring of a male-female connector according to an embodiment of the present invention.

[0049] Explanation of reference numerals:

[0050] 1. Male connector; 101. Conductive post; 102. Insulating partition; 103. External thread; 104. Connecting cylinder;

[0051] 2. Female connector; 201. Slot; 202. Accommodating groove; 203. Sealing ring;

[0052] 3. Locking nut; 301. Annular protrusion; 302. Internal thread;

[0053] 4. Elastic piece; 401. Cylindrical section; 402. Conical section; 4021. Elastic flap. Detailed implementation manners

[0054] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0055] Male and female connectors are common components used for aerial docking on household appliances such as water purifiers and hot water faucets. In related technologies, male and female connectors mainly use the conductive column at the male end of the connector to connect with the spring sheet inserted into the female end of the connector. The conductive column stretches the spring sheet at the female end, and the spring sheet undergoes elastic deformation to exert pressure on the copper column, locking the connection to achieve electrical connection between the faucet part and the entire water purifier.

[0056] Most of the connectors have weak current for communication between the faucet display board and the whole machine, but there are no connectors for strong current connection. If the weak current connector is used for strong current, there will be a risk of sparks due to the small contact area between the copper column and the shrapnel, and the small creepage distance and electrical clearance.

[0057] Combine the following Figures 1 to 14 , describing an embodiment of the utility model.

[0058] According to an embodiment of the present invention, on the one hand, a male-female connector is provided, comprising a male connector end 1 and a female connector end 2. Figure 2 and Figure 3 As shown, the end of the connector male end 1 is formed with a conductive column 101 and an insulating partition 102. There are multiple conductive columns 101, and an insulating partition 102 is provided between every two adjacent conductive columns 101. The insulating partition 102 is used to separate the multiple conductive columns 101. Figure 5 , Figure 6 and Figure 7 As shown, a slot 201 and a receiving slot 202 are formed at the end of the connector female end 2. The slot 201 is used to be plugged with the conductive column 101, and the receiving slot 202 is used to receive the insulating partition 102. The insulating partition 102 and the receiving slot 202 are gap-matched.

[0059] The male end 1 of the male and female connector of the embodiment of the utility model is provided with a conductive column 101 and an insulating partition 102, and the insulating partition 102 separates two adjacent conductive columns 101, thereby extending the creepage distance between the two adjacent conductive columns 101 and increasing the electrical gap between the two conductive columns 101, thereby reducing the risk of sparks during use of the male and female connectors.

[0060] On this basis, the receiving groove 202 on the female end 2 of the male and female connectors of the embodiment of the utility model is configured to be gap-matched with the insulating partition 102, thereby reducing the requirements for the processing accuracy of the male and female connectors, reducing the scrap rate of the male and female connectors, and reducing the resistance that the male and female connectors need to overcome during the plugging and unplugging process.

[0061] It should be noted that in the embodiments of the present application, the sizes of the insulating partition 102 and the receiving groove 202 are not limited. Exemplarily, in a preferred embodiment, the thickness of the insulating partition 102 is about 1 mm, and the size of the receiving groove 202 in the thickness direction of the insulating partition 102 is about 1.05 mm.

[0062] In one embodiment, as Figure 7 shown, the insulating partition 102 extends radially along the male connector end 1 and extends from the axis of the male connector end 1 to the edge of the male connector end 1.

[0063] By setting it in this way, each insulating partition 102 can be used to separate the conductive posts 101 on both sides.

[0064] As a transformable embodiment, an insulating partition 102 is disposed around the outer periphery of each conductive post 101.

[0065] In one embodiment, the size of the insulating partition 102 in the axial direction of the male connector end 1 is L, as Figure 3 shown, the minimum distance between two adjacent conductive posts 101 is d1; 2L + d1 ≥ 8 mm, d1 ≥ 3.2 mm.

[0066] By setting it in this way, it can be ensured that the creepage distance and the electrical clearance of the male-female head connector can both meet the safety regulations requirements for strong electrical connections, and it can effectively solve the limitation that the male-female head connector in the related art can only be used for weak electrical signal connections. The male-female head connector in the embodiments of the present utility model can be used for both strong electrical signal connections and weak electrical signal connections.

[0067] In a preferred embodiment, L ≥ 8 mm, d1 ≥ 4 mm. By setting it in this way, the creepage distance of the male connector end 1 can reach 20 mm, and the risk of arcing during the use of the male-female head connector can be effectively reduced.

[0068] In a preferred embodiment, the size of the receiving groove 202 in the axial direction of the male connector end 1 is about 8.1 mm.

[0069] In one embodiment, as Figure 3 shown, there are four conductive posts 101, and the diameter of the conductive posts 101 is d2, 1.9 mm ≤ d2 ≤ 2.1 mm.

[0070] When the number and diameter of the conductive posts 101 are within the above ranges, it can not only ensure that there is sufficient electrical clearance between the conductive posts 101 to reduce the risk of arcing, but also enable the surface area of the conductive posts 101 to be set larger, thereby increasing the contact area between the conductive posts 101 and the elastic pieces 4 on the female connector end 2, and further ensuring the safety during the use of the male-female head connector.

[0071] In one embodiment, as Figure 1 and Figure 5 shown, a sealing ring 203 is provided on the outer periphery of one of the male connector end 1 and the female connector end 2, and an external thread 103 is formed on the other of the male connector end 1 and the female connector end 2. The male-female head connector further includes a locking nut 3. An internally threaded portion 302 and an annular protrusion 301 are formed on the inner wall of the locking nut 3 at intervals. The internally threaded portion 302 can be connected to the external thread 103, and the annular protrusion 301 is in interference fit with the side of the sealing ring 203 away from the internally threaded portion 302.

[0072] By setting like this, the locking nut 3 can implement a reliable connection between the male connector end 1 and the female connector end 2, and is in interference fit with the sealing ring 203, thereby improving the sealing performance of the male-female head connector, preventing impurities such as moisture and dust from entering the inside of the male-female head connector, causing problems such as short circuits and corrosion, and affecting the normal operation of the male-female head connector and the safety performance of the device.

[0073] In one embodiment, the sealing ring 203 is fixedly connected to the female connector end 2. By setting like this, the sealing ring 203 can not only be used to abut against the annular protrusion 301 of the locking nut 3, thereby locking and connecting the female connector end 2 and the male connector end 1, but also be used for interference fit with the annular protrusion 301, thereby achieving a waterproof effect.

[0074] The sealing ring 203 is preferably but not limited to being fixedly arranged on the female connector end 2 by means of bonding, riveting, welding or interference fit, etc.

[0075] As an alternative embodiment, a limiting protrusion is formed on the female connector end 2. The limiting protrusion is formed on the outer periphery of the female connector end 2. When the locking nut 3 is threadedly connected to the external thread 103, the annular protrusion 301 can abut against the limiting protrusion, thereby locking and connecting the female connector end 2 and the male connector end 1.

[0076] In one embodiment, the sealing ring 203 is sleeved on the female connector end 2, as Figure 14 shown, the inner diameter of the sealing ring 203 is r1, the outer diameter of the connection part between the female connector end 2 and the sealing ring 203 is r2, and 1.8mm ≤ r2 - r1 ≤ 2.2mm; and / or,

[0077] the thickness of the sealing ring 203 is d3, and 1.8mm ≤ d3 ≤ 2.2mm.

[0078] By setting like this, after the locking nut 3 locks and connects the male connector end 1 and the female connector end 2, the compression amount of the sealing ring 203 is greater than 25%, which can ensure that the male-female head connector has excellent waterproof performance.

[0079] It should be noted that in the embodiments of the present application, the inner diameter of the sealing ring 203 and the outer diameter of the female connector end 2 are not limited. Exemplarily, in a preferred embodiment, r1 is 12 mm, r2 is 14 mm, and d3 is 2 mm.

[0080] In one embodiment, the male-female connector further includes a connecting cylinder 104. The connecting cylinder 104 is provided at the end of the male connector end 1 and is disposed around the conductive post 101. An external thread 103 is provided on the outer periphery of the connecting cylinder 104. The outer end of the insulating partition 102 is connected to the conductive post 101 and encloses a cavity, and each cavity is provided with a conductive post 101.

[0081] The connecting cylinder 104 can be used to set the external thread 103 so as to be locked and connected with the locking nut 3, and can also shield the insertion part of the conductive post 101 and the slot 201 after the conductive post 101 is inserted into the slot 201, thereby helping to improve the sealing performance of the male-female connector.

[0082] The connecting cylinder 104 is preferably made of an insulating material, so as to further reduce the risk of electric leakage during the use of the male-female connector.

[0083] As a changeable embodiment, the connecting cylinder 104 includes an insulating cylinder and a metal thread cap sleeved on the outer periphery of the insulating cylinder. The external thread 103 is formed on the metal thread cap. The insulating cylinder is used to improve the sealing performance of the male-female connector, and the metal thread cap is used to improve the hardness of the external thread 103, so as to ensure a more reliable connection between the male-female connectors.

[0084] In one embodiment, the male-female connector further includes a spring piece 4 disposed in the slot 201, and the spring piece 4 is used for interference fit with the conductive post 101.

[0085] The spring piece 4 can not only ensure a reliable connection between the conductive post 101 and the slot 201 and is not easy to loosen, but also helps to increase the contact area between the spring piece 4 and the conductive post 101. In a preferred embodiment, the contact area of each spring piece 4 with the conductive post 101 is about 0.3 mm 2 , which can meet the requirement of carrying large current.

[0086] In one embodiment, as Figure 3 and Figure 7 shown, a card slot is formed on one of the female connector end and the male connector end, and a buckle is formed on the other of the female connector end and the male connector end. The card slot and the buckle can be snap-connected when the female connector end and the male connector end are connected, so as to pre-position the female connector end and the male connector end.

[0087] In one embodiment, as Figures 8 to 13As shown, the elastic piece 4 includes a cylindrical section 401 and a conical section 402. Among them, the cylindrical section 401 is arranged in the slot and can be inserted by the conductive post 101. The conical section 402 is arranged at the end of the cylindrical section 401 close to the bottom of the slot 201 and includes a plurality of elastic petals 4021. The plurality of elastic petals 4021 are arranged at intervals along the circumferential direction of the cylindrical section. Along the direction away from the cylindrical section, the elastic petals 4021 are inclined in the direction of converging towards each other.

[0088] When the male connector 1 is plugged into the female connector 2, the conductive post 101 can be inserted into the cylindrical section 401 and the conical section 402 in sequence, and the elastic petals 4021 can clamp the conductive post 101.

[0089] Among them, the cylindrical section 401 can be used to contact the conductive post 101, thereby helping to increase the contact area between the elastic piece 4 and the conductive post 101. The elastic petals 4021 can be used for interference fit with the conductive post 101, so as to ensure the reliable connection between the conductive post 101 and the slot 201 and not easy to loosen, and can also play a certain guiding and centering role for the conductive post 101.

[0090] The elastic piece is preferably but not limited to being made of elastic metals such as stainless steel, carbon steel or copper alloy. In a preferred embodiment, the elastic piece made of gold-plated C5191 phosphor bronze has good elasticity and is not easy to undergo plastic deformation, and gold plating ensures good conductivity.

[0091] According to an embodiment of the present invention, on the other hand, a water purifier is also provided, which includes the male-female head connector provided in the first aspect of the present invention.

[0092] The water purifier in the second aspect of the present invention includes or uses the male-female head connector provided in the first aspect of the present invention, and thus has its beneficial effects, that is, the receiving groove 202 on the female connector 2 of the male-female head connector of the water purifier is set to be in clearance fit with the insulating partition 102, thereby reducing the requirement for the processing accuracy of the male-female head connector, reducing the rejection rate of the male-female head connector, and reducing the resistance that needs to be overcome during the plugging and unplugging process of the male-female head connector.

[0093] Although the embodiments of the present invention are described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A male and female connector, characterized in that: include: A connector male end (1), the end of which is formed with a conductive column (101) and an insulating partition (102), the conductive columns (101) being multiple, the insulating partition (102) being provided between every two adjacent conductive columns (101), the insulating partition (102) being used to separate the multiple conductive columns (101); A female connector end (2) is provided with a slot (201) and a receiving slot (202) at its end, wherein the slot (201) is used for plugging with the conductive column (101), and the receiving slot (202) is used for receiving the insulating partition (102), and the insulating partition (102) and the receiving slot (202) are loosely matched.

2. The male and female connector according to claim 1, characterized in that: The insulating partition (102) extends along the radial direction of the connector male end (1), and extends from the axis of the connector male end (1) to the edge of the connector male end (1).

3. The male and female connector according to claim 1, characterized in that: The dimension of the insulating partition (102) in the axial direction of the connector male end (1) is L, and the minimum distance between two adjacent conductive pillars (101) is d1; 2L+d1≥8mm, d1≥3.2mm.

4. The male and female connector according to claim 1, characterized in that: There are four conductive pillars (101), and the diameter of the conductive pillars (101) is d2, 1.9 mm≤d2≤2.1 mm.

5. The male and female connector according to any one of claims 1 to 4, characterized in that: A sealing ring (203) is provided on the outer periphery of one of the connector male end (1) and the connector female end (2), and an external thread (103) is formed on the other of the connector male end (1) and the connector female end (2), and the male and female connectors further include: The locking nut (3) has an inner wall formed with an internal thread (302) and an annular protrusion (301) arranged at intervals, the internal thread (302) being connectable to the external thread (103), and the annular protrusion (301) being interference fit with a side of the sealing ring (203) away from the internal thread (302).

6. The male and female connector according to claim 5, characterized in that: The sealing ring (203) is sleeved on the female end (2) of the connector, the inner diameter of the sealing ring (203) is r1, the outer diameter of the connection between the female end (2) of the connector and the sealing ring (203) is r2, and 1.8 mm ≤ r2-r1 ≤ 2.2 mm; and / or, The thickness of the sealing ring (203) is d3, 1.8 mm ≤ d3 ≤ 2.2 mm.

7. The male and female connector according to claim 6, characterized in that: Also includes: A connecting tube (104) is arranged at the end of the male end (1) of the connector and is arranged around the outside of the conductive column (101); the external thread (103) is arranged on the outer circumference of the connecting tube (104); the outer end of the insulating partition (102) is connected to the conductive column (101) and forms a cavity; and one conductive column (101) is arranged in each cavity.

8. The male and female connector according to any one of claims 1 to 4, characterized in that: It also comprises a spring sheet (4) arranged in the slot (201), the spring sheet (4) being used for interference fit with the conductive column (101).

9. The male and female connector according to claim 8, characterized in that: The spring piece (4) comprises: A cylindrical section (401) is disposed in the slot (201) and is capable of allowing the conductive column (101) to be inserted; The conical section (402) is arranged at the end of the cylindrical section (401) close to the bottom of the slot (201), and includes a plurality of elastic petals (4021). The plurality of elastic petals (4021) are arranged at intervals along the circumference of the cylindrical section (401), and in the direction away from the cylindrical section (401), the elastic petals (4021) are inclined in a direction of gathering together.

10. A water purifier, characterized in that: It comprises the male and female connector as claimed in any one of claims 1 to 9.

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