CN220774894U - Adapter and tumor electric field therapeutic apparatus - Google Patents

Abstract

The application provides an adapter and tumour electric field therapeutic instrument, the adapter includes upper cover, lower cover, a plurality of sockets and mainboard, and upper cover and lower cover lid are closed and are formed the chamber of acceping that holds mainboard and a plurality of sockets. The lower cover is provided with a bottom wall and side walls positioned around the bottom wall, the upper cover is provided with a top wall and side walls positioned around the top wall, the socket comprises an insulating body with a plug hole and a fastener sleeved outside the insulating body, and the socket penetrates through the side walls of the lower cover and the side walls of an upper cover corresponding to the side walls to expose the plug hole. The insulating body comprises a front end part, and the front end part and the side wall of the fastener are clamped on the front side. The socket of the adapter is reliably fixed through the side wall of the clamping lower cover, so that the socket is prevented from shaking when being in butt joint with the butt joint plug, and stable electric connection between the socket and the main board can be ensured.

Description

Adapter and tumor electric field therapeutic apparatus

Technical Field

The application relates to an adapter and a tumor electric field therapeutic apparatus.

Background

Tumor electric field therapy has been used for many years as a physical therapeutic means, and a tumor therapeutic method in which a low-intensity, medium-high-frequency, alternating electric field interferes with the mitotic process of tumor cells is generated by a special electric field generating device. Research shows that the electric field treatment has obvious effect in treating glioblastoma, non-small cell lung cancer, malignant pleural mesothelioma and other diseases, can influence the aggregation of tubulin, prevent spindle formation, inhibit mitosis process and induce cancer cell apoptosis.

Tumor electric field therapeutic apparatuses for tumor electric field therapy generally include an electric field generator, a plurality of pairs of electrode patches, and an adapter, the adapter transmitting an alternating electric field generated by the electric field generator to the electrode patches, which are applied to a lesion of a patient to perform electric field therapy on the lesion. The adapter is provided with an extension line connected with the electric field generator and a plurality of sockets for realizing electric connection with corresponding electrode patches respectively, the electrode patches are provided with cable connectors electrically connected with the electrode patches, one end of each cable connector is provided with a plug, the plug is spliced with the socket of the adapter, alternating current of the electric field generator is transmitted to the electrode patches, so that an electric field is formed between each pair of electrode patches, and electric field treatment is carried out on a tissue region where a focus is located.

The adapter comprises a shell for accommodating a plurality of sockets and a main board positioned in the shell, wherein a plurality of pins of the sockets are welded to one side of the main board, and the other side of the main board is electrically connected with the extension line. The socket hole of the socket is exposed out of the front side of the shell so as to be in butt joint with the butt joint plug, and when the socket is used, the socket of the conventional adapter is easy to shake back and forth when in butt joint with the butt joint plug, so that the stability of electrical connection between the socket and the main board is affected.

Therefore, improvements to existing adapters and tumor electric field therapy devices are needed.

Disclosure of Invention

The application provides an adapter with different sockets, which can avoid misplug of a plug in butt joint.

Specifically, the application is realized by the following technical scheme: the adapter comprises an upper cover, a lower cover, a plurality of sockets and a main board, wherein the upper cover and the lower cover are covered to form a containing cavity for containing the main board and the plurality of sockets, the lower cover is provided with a bottom wall and side walls positioned around the bottom wall, the upper cover is provided with a top wall and side walls positioned around the top wall, the sockets comprise an insulating body with plug holes and a fastener sleeved outside the insulating body, and the sockets penetrate through the side walls of the lower cover and the side walls of the upper cover corresponding to the side walls to expose the plug holes; the insulating body comprises a front end portion, and the side wall is clamped by the front end portion and the fastener.

According to one embodiment of the utility model, the insulating body is provided with a main wall and a circle of annular wall extending forwards from the main wall, the annular wall and the main wall form a plugging cavity together, the front end of the plugging cavity far away from the main wall forms the plugging hole, the annular wall is provided with the front end part and a rear end part connected with the front end part, the front end part is positioned outside the accommodating cavity, the rear end part is positioned in the accommodating cavity, the rear end part is provided with threads, and the fastening piece is connected with the threads of the rear end part.

According to one embodiment of the utility model, the fastener is a nut.

According to one embodiment of the utility model, the side wall comprises a first side wall positioned at one side of the socket and a second side wall positioned at the inner side of the first side wall, and the second side wall is provided with a plurality of stop ribs extending from the inner side of the second side wall to the accommodating cavity.

According to one embodiment of the utility model, the front end portion abuts against one side of the first side wall away from the accommodating cavity, and the fastening piece abuts against one side of the stop rib or the second side wall facing the accommodating cavity.

According to one embodiment of the utility model, a first isolation groove is arranged between the first side wall and the second side wall, and foam is arranged in the first isolation groove.

According to one embodiment of the utility model, the insulation body is provided with a limit groove communicated with the plug cavity along the plug direction, and the plurality of sockets comprise a first socket and a second socket, and the limit grooves of the first socket and the second socket are different.

According to one embodiment of the utility model, the socket comprises a pin holder in the insulating body, the pin holder comprises a plastic block and a plurality of pins, the plastic block is provided with a plurality of through pin holes, and the pins are provided with contact parts in the pin holes and tail parts welded with the main board.

According to one embodiment of the utility model, the bottom wall is provided with a positioning column, and the main board is provided with a positioning hole for the positioning column to pass through.

According to one embodiment of the utility model, the bottom wall is further provided with a plurality of positioning ribs distributed around the main board for limiting the main board.

According to an embodiment of the present utility model, there is further provided a tumor electric field therapeutic apparatus, including an electric field generator, an adapter electrically connected to the electric field generator, and a plurality of electrode patches having cable connectors, where the cable connectors of the electrode patches are plugged into corresponding sockets of the adapter.

The socket of the adapter is reliably fixed through the side wall of the clamping lower cover, so that the socket is prevented from shaking when being in butt joint with the butt joint plug, and stable electric connection between the socket and the main board can be ensured.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

Fig. 1 is a perspective combination view of an adapter and a cable connector plugged with the adapter according to one embodiment of the present application.

Fig. 2 is an exploded perspective view of the adapter shown in fig. 1.

Fig. 3 is an exploded perspective view of a part of the structure of the socket of the adapter shown in fig. 1.

Fig. 4 is an exploded perspective view of the cable connector shown in fig. 1.

Fig. 5 is a perspective view of a lower cover of the adapter shown in fig. 2.

Fig. 6 is a perspective view of the upper cover of the adapter shown in fig. 2.

Fig. 7 is a perspective assembly view of the adapter shown in fig. 1 with the upper cover removed.

Fig. 8 is a cross-sectional view of A-A of the adapter shown in fig. 1.

Fig. 9 is a perspective view of an adapter according to another embodiment of the present application.

Fig. 10 is a schematic diagram of the tumor electric field therapeutic apparatus of the present application.

Reference numerals illustrate:

tumor electric field therapeutic apparatus 1000, adapter 100', electric field generator 300, electrode patch 400, housing cavity 101, lower cover 1, bottom wall 11, first screw column 111, positioning column 112, positioning rib 113, reinforcing rib 114, side wall 12, protruding rib 121, first side wall 123, second side wall 124, front notch 125, rear notch 126, first isolation groove 127, stopper rib 13, upper cover 2, top wall 21, second screw column 211, indication hole 212, positioning groove 213, side wall 22, groove 221, first side wall 223, second side wall 224, front notch 225, rear notch 226, second isolation groove 227, socket 3, socket 6, first socket 3A, first socket 6A, third socket 6A, fourth socket the second socket 3B, the second socket 6B, the plug hole 30, the insulating body 31, the main wall 311, the annular wall 312, the front end 3121, the rear end 3122, the threads 3123, the plug cavity 313, the limit groove 315, the snap hole 316, the plug holder 32, the plastic block 321, the pin 322, the pin hole 323, the fastener 33, the positioning block 34, the main board 4, the through hole 41, the positioning hole 42, the extension 5, the cable connector 200, the plug 201, the first plug 201A, the second plug 201B, the plug body 202, the mating terminal holder 2021, the inner housing 2022, the front outer housing 2023, the rear outer housing 2024, the opening 2025, the mating pin 203, the mating portion 204, the contact portion 205, the limit rib 206, the elastic snap 207, and the connecting wire 208.

Detailed Description

Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus, systems, devices, and methods that are consistent with aspects of the present application.

Referring to fig. 10, a tumor electric field therapeutic apparatus 1000 for tumor electric field therapy generally includes an electric field generator 300, an adapter 100, a plurality of pairs of electrode patches 400, and a plurality of cable connectors 200 respectively corresponding to the electrode patches 400 one by one and electrically connecting the electrode patches 400 to the adapter 100. One end of the cable connector 200 is electrically connected with the electrode patch 400, the other end is electrically connected with the adapter 100, and the other end of the adapter 100 is electrically connected with the electric field generator 300, so that the alternating current signal generated by the electric field generator 300 is transmitted to the electrode patch 400 through the adapter 100 and the cable connector 200, and is applied to at least one pair of electrode patches 400 corresponding to the tumor site of the patient so as to act on the tumor site. Referring to fig. 1 to 2, the adapter 100 includes a lower cover 1, an upper cover 2, a plurality of sockets 3, a main board 4, and an extension 5. A containing cavity 101 is formed between the lower cover 1 and the upper cover 2, and the socket 3 is electrically connected with the main board 4 and is positioned in the containing cavity 101. The socket 3 is located at the front end of the adapter 100 and exposes the insertion hole 30 from the front side of the adapter 100, and the socket 3 is inserted into the plug 201 provided on the cable connector 200 through the insertion hole 30. The extension line 5 is located at the rear end of the adapter 100, one end of the extension line 5 is electrically connected with the main board 4, and the other end extends out of the adapter 100 to be electrically connected with the electric field generator 300. In the present embodiment, the adapter 100 is provided with four sockets 3, and the plugging holes 30 of the four sockets 3 are exposed to the front side of the adapter 100 in a row and are plugged into four cable connectors 200 respectively connected to two pairs of electrode patches 400.

Referring to fig. 2 and 3, the socket 3 includes an insulating body 31, a socket holder 32 disposed in the insulating body 31, a fastener 33 sleeved outside the insulating body 31, and a positioning block 34. In this embodiment, the pin holders 32 of the four sockets 3 are identical. The insulating body 31 includes a main wall 311 and a ring of annular walls 312 extending forward from the main wall 311, the annular walls 312 and the main wall 311 enclose a circular insertion cavity 313, and the front end of the insertion cavity 313 far away from the main wall 311 forms the insertion hole 30. The main wall 311 is provided with a fixing hole (not shown), and the plug pin holder 32 is assembled on the insulating body 31 through interference fit with the fixing hole (not shown) and is arranged in the plug cavity 313 in a surrounding suspended manner. The pin holder 32 includes a plastic block 321 and a plurality of pins 322, the plastic block 321 is substantially cylindrical, the plastic block 321 is provided with a plurality of pin holes 323 penetrating therethrough, contact portions (not numbered) of the pins 322 are located in the pin holes 323, tail portions (not numbered) of the pins 322 extend out of the plastic block 321 and the insulating body 31 backward and pass through the positioning block 34 downward to be welded with the motherboard 4, and are used for transmitting electrical signals with the motherboard 4.

Referring to fig. 1 and 4, the cable connector 200 includes a plug 201 and a connecting wire 208 electrically connected to the plug 201, the plug 201 includes a plug body 202 and a mating pin 203, the plug body 202 is provided with a mating portion 204, the mating pin 203 is fixed in the plug body 202, and a contact portion 205 of the mating pin 203 extends into the mating portion 204. Specifically, the plug body 202 includes a mating terminal block 2021 for fixing the mating pin 203, an inner housing 2022, a front housing 2023, and a rear housing 2024. After the inner housing 2022 is fixed in the front outer housing 2023, the butt terminal housing 2021 is placed in the inner housing 2022, and the butt terminal housing 2021 is fixed in the inner housing 2022 by the front end of the rear outer housing 2024 being fitted over the rear end of the inner housing 2022, thereby fixing the butt terminal housing 2021 in the front outer housing 2023. The butt-joint terminal block 2021, the inner case 2022, and the front outer case 2023 together form the butt-joint portion 204. When the plug 201 is plugged into the socket 3, the abutting portion 204 of the plug 201 is inserted into the plugging cavity 313 through the plugging hole 30 of the socket 3, and the contact portion 205 of the abutting pin 203 of the plug 201 is inserted into the pin hole 323 in the socket 3 to be electrically connected with the pin 322.

To ensure that the plug 201 mates with the receptacle 3 at the correct angle, at least one limiting groove 315 extending in the mating direction (i.e., the front-to-rear direction) is formed on the inner surface of the annular wall 312 of the receptacle 3. The outer surface of the abutting portion 204 of the plug 201 is provided with a limit rib 206 which is matched with the limit groove 315. When the socket 3 is docked with the plug 201, the limit ribs 206 of the plug 201 are inserted into the limit grooves 315 of the socket 3 to form inter-fit, so that the docking pins 203 of each plug 201 can be accurately inserted into the pin holes 323 of the socket 3. It will be appreciated that the limit groove 315 may also be disposed on the plug 201, and the corresponding limit rib 206 is disposed on the socket 3, and the limit groove 315 and the limit rib 206 may be referred to as a limit portion or a limit structure. The inner wall of the insulating body 31 in the plugging cavity 313 is further provided with a plurality of fastening holes 316, the abutting portion 204 of the plug 201 is further provided with an elastic fastener 207, and specifically, the elastic fastener 207 is formed by the side wall of the inner shell 2022 and penetrates through the opening 2025 of the front outer shell 2023 to expose the surface of the abutting portion 204. When the socket 3 is docked with the plug 201, the elastic buckle 207 is clamped into the buckle hole 316, so that the plug 201 and the socket 3 form a buckle connection, and the plug 201 is prevented from being accidentally separated from the socket 3.

Referring to fig. 1, four sockets 3 are divided into two groups, the sockets 3 of the same group should be respectively docked with a group of cable connectors 200 of the corresponding same pair of electrode patches 400, but cannot be docked with other cable connectors 200, and the structures of the four sockets 3 are basically the same, so as to avoid the occurrence of misplug of the plug 201, different limiting grooves 315 are provided for the sockets 3 of different groups. The following will specifically describe an example in which different sets of sockets 3 are provided with different numbers of limiting grooves 315. Specifically, from left to right, the 1 st and 3 rd sockets 3 are a group, and only one limiting groove 315 is provided, which is called a first socket 3A; the 2 nd and 4 th sockets 3 are a group, and two limit grooves 315 are provided, which are called second sockets 3B. The first sockets 3A and the second sockets 3B are alternately arranged in a row. The plug 201 on the cable connector 200 which is in butt joint with the first socket 3A is provided with a limit rib 206, which is called as a first plug 201A; the plug 201 on the cable connector 200 which is in butt joint with the second socket 3B is provided with two limit ribs 206, which are called as a second plug 201B; the user can select the corresponding socket 3 with the corresponding limit grooves 315 according to the number of the limit ribs 206, the first plug 201A with one limit rib 206 is plugged with the first socket 3A with one limit groove 315, the second plug 201B with two limit ribs 206 is plugged with the second socket 3B with two limit grooves 315, the plug 201 is ensured to be plugged with the corresponding socket 3 correctly, and the misplug of the plug 201 is avoided.

The specific number of the limiting grooves 315 can be adjusted as long as the same group of sockets 3 are identical, and different groups of sockets 3 have different numbers of limiting grooves 315. In addition to observing the number of the limit ribs 206 and the limit grooves 315 to determine whether they can be matched, different colors may be used to distinguish them, for example, the first socket 3A and the first plug 201A are set to one color, the second socket 3B and the second plug 201B are set to another different color, and the socket 3 with the corresponding color is selected directly according to the color of the plug 201. The color may be different from the color of the insulating body 31, may be different from the color of the socket 32, or may be different from the overall color of the insulating body 31 and the socket 32.

In other embodiments, the sizes of the limit ribs 206 and the limit grooves 315 may be reasonably designed to avoid misplug in mechanical structure. Specifically, the width of the limiting groove 315 of the first socket 3A may be the same as the width of the limiting groove 315 of the second socket 3B, or the width of the limiting groove 315 of the second socket 3B may be different. When the width of the limit groove 315 of the first socket 3A is the same as the width of the limit groove 315 of the second socket 3B, since the size of the limit rib 206 of the first plug 201A is approximately the same as the width of the limit groove 315 of the first socket 3A, although the limit rib 206 of the first plug 201A may be inserted into one limit groove 315 of the second socket 3B, since the second plug 201B has two limit ribs 206 and only one limit groove 315 of the first socket 3A, the second plug 201B still cannot be inserted into the first socket 3A, thereby prompting that the first plug 201A is inserted incorrectly, and re-insertion needs to be performed until the first plug 201A and the second plug 201B are respectively inserted into the corresponding first socket 3A and the second socket 3B, thereby achieving the purpose of preventing misplug. When the width of the limit groove 315 of the first socket 3A is different from the width of the limit groove 315 of the second socket 3B, as described above, the first plug 201A corresponding to the first socket 3A cannot be inserted into the second socket 3B, so that the purpose of preventing misplug can be achieved.

In order to facilitate quick and correct plugging of the plug 201 and the socket 3, it is preferable that the width of the limit groove 315 of the first socket 3A is greater than the width of the limit groove 315 of the second socket 3B, the width of the limit rib 206 of the first plug 201A is substantially the same as the width of the limit groove 315 of the first socket 3A, and the width of the limit rib 206 of the second plug 201B is substantially the same as the width of the limit groove 315 of the second socket 3B, i.e., the width of the limit rib 206 of the first plug 201A is greater than the width of the limit rib 206 of the second plug 201B. The design can prevent the limit rib 206 of the first plug 201A from being inserted into one of the limit grooves 315 of the second socket 3B, so as to realize quick and correct plugging. Similarly, the width of the limiting groove 315 of the first socket 3A is smaller than the maximum circumferential distance between the two limiting grooves 315 of the second socket 3B, so that the two limiting ribs 206 of the second plug 201B can be prevented from being inserted into the limiting groove 315 of the first socket 3A at the same time, and rapid and correct plugging is achieved. That is, the width of the spacing rib 206 of the first plug 201A is smaller than the circumferential maximum width between the two spacing ribs 206 of the second plug 201B.

In another embodiment, the prevention of the misplug between the socket 3 and the plug 201 may be achieved by providing the same number of limit grooves 315 but different sizes on the first socket 3A and the second socket 3B. Specifically, the number of the limit grooves 315 of the first socket 3A and the second socket 3B is the same, but the widths of the limit grooves 315 are different. The width of the limit rib 206 of the first plug 201A is approximately the same as the width of the limit groove 315 of the first socket 3A, and the width of the limit rib 206 of the second plug 201B is approximately the same as the width of the limit groove 315 of the second socket 3B. If the first socket 3A and the second socket 3B are provided with 1 limit groove 315, but the width of the limit groove 315 of the first socket 3A and the width of the limit groove 315 of the second socket 3B are different, the first plug 201A can only be plugged into the corresponding first socket 3A, the second plug 201B can only be plugged into the corresponding second socket 3B, the first plug 201A cannot be plugged into the second socket 3B, and the second plug 201B cannot be plugged into the first socket 3A. Similarly, when the first socket 3A and the second socket 3B are both provided with a plurality of limit grooves 315; if the first socket 3A and the second socket 3B are provided with 2 limit grooves 315, the widths of the limit grooves 315 are different, that is, the width of a single limit groove 315 provided on the first socket 3A is different from the width of a single limit groove 315 provided on the second socket 3B, the first plug 201A and the second socket 3B cannot be mutually matched, the second plug 201B and the first socket 3A cannot be mutually matched, the first plug 201A can only be inserted into the first socket 3A, and the second plug 201B can only be inserted into the second socket 3B, so that the plugging error is avoided.

The present application can also be implemented by setting the same number of limit grooves 315, which are the same size but different positions, on the first socket 3A and the second socket 3B. The dimensions of the limit grooves 315 are the same, specifically, the width of the limit grooves 315 is the same; the different positions of the limiting grooves 315 specifically means that the spacing distance between the adjacent limiting grooves 315 on the first socket 3A is different from the spacing distance between the adjacent limiting grooves 315 on the second socket 3B; the same number of the limiting grooves 315 means that at least 2 limiting grooves 315 are disposed on the first socket 3A and the second socket 3B, and the number of the limiting grooves 315 on the first socket 3A is equal to the number of the limiting grooves 315 on the second socket 3B.

The number of the limit grooves 315 of the first socket 3A and the second socket 3B is the same and the number of the limit grooves 315 is larger than 1, the width of the limit grooves 315 of the first socket 3A and the second socket 3B is the same but the interval distance between the limit grooves 315 is different. Another embodiment of an adapter 100 'as shown in fig. 9 is substantially the same as the structure of the adapter 100 shown in fig. 1, and only differs from the socket in the number and positions of the limit grooves, and correspondingly, the number and positions of the limit ribs on the plug of the cable connector plugged with the adapter 100'. Specifically, the socket 6 of the adapter 100' includes a first socket 6A and a second socket 6B, where the first socket 6A and the second socket 6B are respectively provided with 2 limit grooves 615, the width of the limit grooves 615 is the same, but the spacing distance between the 2 limit grooves 615 on the first socket 6A is different from the spacing distance between the 2 limit grooves 615 on the second socket 6B, that is, the maximum width between the outer edges of the 2 limit grooves 615 provided on the first socket 6A is different from the maximum width between the outer edges of the 2 limit grooves 615 provided on the second socket 6B, the first plug (not shown) is provided with limit ribs (not shown) corresponding to the number and positions of the limit grooves 615 of the first socket 6A, and the second plug (not shown) is provided with limit ribs (not shown) corresponding to the number and positions of the limit grooves 615 of the second socket 6B, so as to achieve the purposes of avoiding the mismatching between the first plug (not shown) and the first socket 6A and the second plug (not shown) and the second socket 6B.

Referring to fig. 5 and 6, and referring to fig. 2, the upper cover 2 and the lower cover 1 are assembled up and down to form the accommodating cavity 101, and after the socket 3, the motherboard 4 and the extension 5 are all fixed to the lower cover 1, the upper cover 2 is fixed to the lower cover 1 to complete the assembly of the adapter 100. The lower cover 1 has a substantially rectangular box shape and comprises a bottom wall 11 and side walls 12 positioned around the bottom wall 11, and the upper cover 2 comprises a top wall 21 and side walls 22 positioned around the top wall 21. The upper surface of the side wall 12 is provided with a convex rib 121, the lower surface of the side wall 22 is provided with a groove 221, and when the upper cover 2 and the lower cover 1 are mutually covered, the convex rib 121 is inserted into the groove 221 to play a role in limiting and waterproof. Preferably, a sealing ring (not shown) may be further disposed in the groove 221 to enhance the waterproof effect.

Referring to fig. 7, the bottom wall 11 of the lower cover 1 is provided with a plurality of first screw posts 111, the main board 4 is provided with a plurality of through holes 41, the top wall 21 of the upper cover 2 is provided with a plurality of second screw posts 211, and screws (not shown) pass through the second screw posts 211 of the upper cover 2 and the through holes 41 of the main board 4 to be locked on the first screw posts 111 of the lower cover 1, so that the upper cover 2 and the lower cover 1 are reliably fixed together. The bottom wall 11 of the lower cover 1 is provided with a plurality of positioning columns 112, the main board 4 is correspondingly provided with a plurality of positioning holes 42, and the positioning columns 112 are inserted into the positioning holes 42 to position the main board 4. The peripheral edge of the bottom wall 11 of the lower cover 1 is also provided with a plurality of positioning ribs 113, the surrounding area of the positioning ribs 113 is consistent with the outline of the main board 4, the positioning ribs 113 can limit the peripheral edge of the main board 4 to move so as to prevent the main board 4 from shaking, and the positioning ribs 113 can be connected with the side wall 12 or other rib positions nearby the positioning ribs to improve the strength.

The side wall 12 located at the front side of the lower cover 1 is a double-layer side wall, and comprises a first side wall 123 located at the front side and a second side wall 124 located at the rear side of the first side wall 123, wherein four front notches 125 are formed in the first side wall 123, and four rear notches 126 are formed in the second side wall 124. The front notch 125 and the rear notch 126 are both approximately semicircular, and are arranged in a front-to-rear alignment. The side walls 22 on the front side of the upper cover 2 are also double-layer side walls, namely a first side wall 223 on the front side and a second side wall 224 on the rear side of the first side wall 223, wherein the first side wall 223 is provided with four front notches 225, and the second side wall 224 is provided with four rear notches 226. The front recess 225 and the rear recess 226 are each generally semicircular and are disposed in a front-to-rear one-to-one alignment.

Referring to fig. 7 and 8, the first sidewall 123 is aligned with the first sidewall 223, and the front notch 125 and the front recess 225 are aligned with each other to form a front through hole (not numbered); the second sidewall 124 is aligned vertically with the second sidewall 224, and the rear notch 126 and the rear recess 226 are aligned vertically to form a rear through hole (not numbered). The annular wall 312 of the socket 3 passes through the front through hole (not numbered) and the rear through hole (not numbered) to expose the adapter 100, the first side wall 123 and the second side wall 124 support the socket 3 together, and the first side wall 223 and the second side wall 224 limit the annular wall 312 of the socket 3 from the top side together. The bottom wall 11 of the lower cover 1 is also provided with a plurality of reinforcing ribs 114, and the reinforcing ribs 114 are connected with the first side wall 123 and the second side wall 124 back and forth. The profile of the front notch 125 and the rear notch 126 is arc-shaped at the bottom side and is vertically and linearly arranged at the left and right opposite sides through the arrangement of the reinforcing ribs 114, and the shape of the outer surface of the rear end 3122 of the corresponding socket 3 is identical to and matched with the profile of the front notch 125 and the profile of the rear notch 126, so that the socket 3 and the first side wall 123 forming the front notch 125 and the second side wall 124 forming the rear notch 126 are mutually abutted in the circumferential direction, and the socket 3 is prevented from rotating along the circumferential direction.

Specifically, the annular wall 312 of the socket 3 includes a front end portion 3121 and a rear end portion 3122 connected to the front end portion 3121, the front end portion 3121 is larger than the rear end portion 3122, the front end portion 3121 is engaged with the front side of the front notch 125, that is, the front end portion 3121 is located outside the housing cavity 101 and the front end portion 3121 abuts against the front side of the first side wall 123, and the rear end portion 3122 is located in the housing cavity 101. The outer surface of the rear end 3122 is provided with threads 3123, and the fastener 33 is a nut that is sleeved outside the rear end 3122. The fastener 33 is located at the rear side of the second side wall 124, and the fastener 33 is gradually brought close to the second side wall 124 by rotating the fastener 33 until the second side wall 124 is held forward, while the front end 3121 located outside the housing chamber 101 is held rearward against the first side wall 123. The front end 3121 of the socket 3 and the fastener 33 jointly clamp the first side wall 123 and the second side wall 124 of the lower cover 1, that is, clamp the side wall 12 located at the front side, thereby fixing the socket 3 to the front end of the lower cover 1, and the socket 3 is limited to move in the front-back direction, so that poor connection between the socket 3 and the motherboard 4 caused by that the socket 3 is driven to move back-forth during the plug 201 is avoided.

A first isolation groove 127 is formed between the first side wall 123 and the second side wall 124 of the lower cover 1, the first isolation groove 127 can prevent water from flowing into the accommodating cavity 101 through the through hole (not numbered), and foam (not shown) can be arranged in the first isolation groove 127 to increase the waterproof effect. A second isolation groove 227 is formed between the first side wall 223 and the second side wall 224 of the upper cover 2, the second isolation groove 227 can prevent water flow from flowing into the accommodating cavity 101 through a through hole (not numbered), and foam (not shown) can be arranged in the second isolation groove 227 to increase the waterproof effect.

The second side wall 124 of the lower cover 1 is further provided with a plurality of stop ribs 13 extending rearward from the rear surface thereof and connected to the bottom wall 11, and the stop ribs 13 are located at two sides of the partial rear notch 126 for being abutted by corresponding fasteners 33. Specifically, referring to fig. 5 and 7, taking fig. 7 as an example, the first and third rear notches 126 are provided with stop ribs 13 on both sides, and the second and fourth rear notches 126 are not provided with stop ribs 13 on both sides, when viewed from left to right. So designed, the fasteners 33 located directly behind the first and third rear notches 126 can abut against the corresponding stop ribs 13, and the fasteners 33 located directly behind the second and fourth rear notches 126 abut against the rear surface of the second sidewall 124, so that two adjacent fasteners 33 abut against the second sidewall 124 and the other one abuts against the stop ribs 13 to be staggered back and forth, which can facilitate the use of tools to rotate the fasteners 33. In the present embodiment, the limit portions of the receptacle 3 at the positions where the stopper ribs 13 are provided are the same.

Referring to fig. 6 and 8, the inner wall of the top wall 21 is provided with a positioning groove 213, the positioning groove 213 is located right above the fastening member 33, accommodates the top of the fastening member 33, and can limit the rotation of the fastening member 33. A gap (not numbered) is reserved between the bottom of the positioning groove 213 and the fastening piece 33, and the thickness of the second side wall 224 is smaller than that of the second side wall 124, so that a gap (not numbered) is reserved between the second side wall 224 and the fastening piece 33, and the upper cover 2 can be conveniently detached. Referring back to fig. 1, the front end of the top wall 21 is provided with an indication hole 212, and the main board 4 is correspondingly provided with an indication lamp (not shown), where the indication hole 212 is used for transmitting light of the indication lamp (not shown) to display whether the socket 3 and the plug 201 are well plugged.

In other embodiments, the electric field generator 300 is provided with a plurality of sockets having the same structure as the socket 3 on the adapter 100 or the adapter 100', and the pairs of electrode patches 400 having the cable connectors 200 in one-to-one correspondence are directly inserted into the corresponding sockets on the electric field generator 300 through the plugs 201 on the cable connectors 200.

The foregoing description of the preferred embodiments of the present application is not intended to be limiting, but rather is intended to cover any and all modifications, equivalents, alternatives, and improvements within the spirit and principles of the present application.

Claims (11)

1. The utility model provides an adapter, includes upper cover, lower cover, a plurality of sockets and mainboard, the upper cover with the lower cover lid closes and forms and holds mainboard and a plurality of the acceping chamber of socket, its characterized in that: the socket comprises an insulating body with a plug hole and a fastener sleeved outside the insulating body, and the socket penetrates through the side wall of the lower cover and the side wall of the upper cover corresponding to the side wall to expose the plug hole; the insulating body comprises a front end portion, and the side wall is clamped by the front end portion and the fastener.

2. An adaptor according to claim 1, wherein: the insulation body is provided with a main wall and a circle of annular wall extending forwards from the main wall, the annular wall and the main wall jointly form an inserting cavity, the inserting cavity is far away from the front end of the main wall to form the inserting hole, the annular wall is provided with a front end part and a rear end part connected with the front end part, the front end part is located outside the accommodating cavity, the rear end part is located in the accommodating cavity, the rear end part is provided with threads, and the fastener is in threaded connection with the rear end part.

3. An adaptor according to claim 2, wherein: the fastener is a nut.

4. An adaptor according to claim 2, wherein: the side wall comprises a first side wall positioned at one side of the socket and a second side wall positioned at the inner side of the first side wall, and the second side wall is provided with a plurality of stop ribs extending from the inner side of the second side wall to the accommodating cavity.

5. The adapter according to claim 4, wherein: the front end part abuts against one side of the first side wall far away from the accommodating cavity, and the fastening piece abuts against one side of the stop rib or the second side wall facing the accommodating cavity.

6. The adapter according to claim 4, wherein: a first isolation groove is formed between the first side wall and the second side wall, and foam is arranged in the first isolation groove.

7. An adaptor according to claim 2, wherein: the insulation body is provided with a limit groove communicated with the plug cavity along the plug direction, the sockets comprise a first socket and a second socket, and the first socket and the second socket are provided with different limit grooves.

8. An adaptor according to claim 1, wherein: the socket comprises a pin seat positioned in the insulating body, the pin seat comprises a plastic block and a plurality of pins, the plastic block is provided with a plurality of through pin holes, and the pins are provided with contact parts positioned in the pin holes and tail parts welded with the main board.

9. An adaptor according to claim 1, wherein: the bottom wall is provided with a positioning column, and the main board is provided with a positioning hole for the positioning column to pass through.

10. An adaptor according to claim 9, wherein: the bottom wall is also provided with a plurality of positioning ribs which are distributed around the main board and used for limiting the main board.

11. A tumor electric field therapeutic apparatus, characterized in that: an electrode patch comprising an electric field generator, an adaptor according to any one of claims 1 to 10 electrically connected to the electric field generator, and a plurality of electrode patches having cable connectors, the cable connectors of the electrode patches being plugged into corresponding sockets of the adaptor.